These instructions are valid for both the iPhone and iPad.
Go to Settings> Mail, Contacts, Calendars
If you have iOS 10 go to Settings> Mail
Select Add Account
Enter your Email address, Password, and add a Description for the account
In some cases this is all the information you will need to enter.
Some people might see this next screen, If you do please enter the following information.
If you do NOT proceed to the next step.
Never Sync your contacts. The option to sync your notes is up to you.