Depends on the frigate and bubbles. If the bubbles are camped and you find yourself in one, burn back to the gate ASAP, jump and hope you can warp out at the other side.
Some frigates can travel more safely using Covert Ops cloaks, like bombers or exploration frigates. With those you can often just slowly drift through the bubble while cloaked (if you care not to get to close to any objects or ships).
Other frigates can travel more safely through bubbles by using an interdiction nullifier module. Interceptors and exploration frigates can equip those, which you can activate before you warp and then ignore any bubbles in your warp path.
For smaller batches (13k m3 or less) a Blockade Runner is perfect. It’s fast, can cloak while warping and can use the interdiction nullifier I mentioned. Get one!
For larger cargo you either fly the Blockade runner a few times, or use a much more expensive Jump Freighter (or pay another player with a Jump Freighter to do so).
Considering these questions and your previous questions, I don’t think you’ll have to worry about that as I don’t think you’re ready for a Titan or Super carrier just yet.
But to answer the question:
Titans and Supers cannot dock in NPC stations or in any player owned structure, except one: a Keepstar. So the only way to move these ships around safely and dock is to be part of an alliance that has (access to) Keepstars.
They can also be ‘relatively safe’ inside a POS, although I do think people can bubble camp you to stop you from getting out while they wait out the bashing timer if they really want to kill you. Never looked much into those mechanics myself as I have neither a super or titan, nor the firepower to kill one.
Supers and Titans can jump the same way other ships with jump drives can jump, like jump freighters, rorquals, dreads, faxes, and black ops battleships.
The range of supers and titans is more limited though, so they cannot always take the same route through space that other capitals can take.
Rorquals can give strong bonuses to mining to the entire fleet, as well as provide compression for the fleet (so the fleet can stay on grid longer without docking), store ore in the huge hold, bring spare ships in the ship maintenance bay, create an industrial bridge or use the conduit jump to bring an entire mining fleet from one system to another, and it can prevent the entire mining fleet (including the Rorqual) from being killed by being invulnerable for 5ish minutes using the P.A.N.I.C. module.
It also can mine, but not as good as it used to. I think a Rorqual-boosted Hulk mines a lot faster than the Rorqual itself.
No you cannot mine in a Rorqual without a team, this ship is designed for group play and is a content beacon that will eventually get caught. It will need help from your alliance to form a fleet to save you from being killed, each time that happens, which can, depending on the outcome, be a fun activity for everyone involved.
If you want to mine without a team there are more suitable ships than a mining support ship like the Rorqual.