It is very easy. You can renew online up to one year after the expiration date. You can download and print a temporary registration that is valid for 10 days on the day you renew.
And how can I do if my address is not the same as when I gave the data?
Your email address on DMV files must be current. You cannot change it during the transaction. First change your address online and then renew.
I already submitted an application to the US Postal Service. UU?