How to Save the Form While being Filled

I want to make sure we are able to save the first few questions about the contact info before the user gets to the more detailed questions...just in case they decide to quit. 

How can I do this? 

Does the submit button fulfill this function?

I could use some help.

To save the progress while filling out the form. Please review the following guide for steps on how to achieve this:

How-to-Enable-Auto-Fill-Feature-Save-Form-Entries-to-Continue-Later

Do let us know if you need further assistance. Thank you.