How to sign in Gmail using security code?

As Gmail is a site made out of many advanced latest technologies and it does have many features included in its list that help the user in getting a better experience, therefore, it is often seen that the user is from non-technical background gets into some of the other problems. In order to sign in Gmail using security code find google settings under services tap security code, enter device password pick the account, a 10 digit code will appear, enter the code on screen click continue. If still, something needs to be cleared then reach the technician.