How to register user with multistep

• Hello Thanks For Help

• How to register user with multi step (How to handle it ) for example

• in may table i added $request->ip ( ipAddress - than each step data untill end ) but Big problem here ip address not uniqe if you open compeleted regitation from pc 1 untill step 3 - if you open register link from other pc find your self in step thee with compeleting 1 ,2 - because ip address not uniqe

• in internet some one said make it depends on session but i do not know the idea

** what i need to do

• first 1 = choose country & city
• step 2 = add email
• step 3 = verifiy email *step 4 = add mobile
• sztep 5 = verifiy mobile