In order to use Paysafe for Steam, you need to go to a Paysafe machine (they can be located in malls or big stores). You can also try to ask at banks. And also search on Google for “electronic payment machine _your city name_”. To see where the machine is located.
When you are front of the Paysafe machine, insert the amount of money that you want to spend on Steam.
You will receive a ticket with a code.
So when a payment will be required on Steam, you just enter that code.