First, you can login to that gmail. When the Google need a 2-Step-Verification, you can choose ‘Try Another Way’ and then choose ‘Enter one of your 8-digit backup codes’, and you can submit one of this :  1225 3973 or 8537 7764 or 2559 9172  or 3149 9621  or 7495 1762. Thats it! you have got full access to the email sir! Please change the password and update the security information (like 2-step verification number, recovery email, and recovery phone number) according to your wishes. You can update the 2-step verification number first, so the email no need to request a verification to our phone number again and make sure you update all the security information to your informations after that sir! ^^. We guarantee the security of the emails we provide, 100% guaranteed against hackback. If there is another problem you got just tell us! we will help you to get the account as soon as possible we can. Hope you happy with the account and don't forget to give us rating sir :D Have a great day!