Hopefully, you have frigate at lvl III already trained while you have flew around getting skills books, stole some stuff from wrecks at belts, beg strangers for some ISKs, or while you practiced scanning a bit here and there. If Frigate still at lvl II train it to III, because each level brings extra 5% for scanning probes sensor strength and it essential for getting signature to 100%.
Once you get Hacking to lvl I you are good to go. Search for signatures type RADAR, warp there at distance +30 km and keep your fingers crossed there are no rats you have to fight to but has no weapons yet.
If there are no rats on site, approach floating can, target it and use codebreaker. It may take couple of minutes before you crack can and can open it and acquire content. Be aware that since you tamper can some rats may appear and argo you right away even if there were no rats at the moment you warped in. It also possible rats fly in right after you open cracked can. Be ready warp out!
It is about 1,5 millions ISK. And Jita is not the cheapest place to buy skills for example.