Here are some very useful links which was written by fellow steemians which will help you go thru the entire signup process on steemit.com
How To Signup for Steemit
Signing up for a steemit.com account is as simple as heading over to http://steemit.com and click signup then follow the signup wizard.
NOTE : You need to verify you EMAIL & your HANDPHONE via sms verification.
Account Creation will happen on the blockchain and you will receive your password within 6-12 hours.
DO NOT LOOSE YOUR PASSWORD
IT CANNOT BE RECOVERED
You have been warned