Laravel 5.6 saving each step of a multi-step form in the database and local drive

I am trying to use JQuery Steps multi-step form in Laravel 5.6. However, instead of just saving everything in the end, I would like save every step of the form in mysql database as well as on user's local drive so that 1. I can see where the form abandonment is happening and 2. if user comes back they can start from where they left off. Any tips?

http://www.jquery-steps.com/Examples

via Chebli Mohamed