Hi Dear Karim,
There are variety of ways of making money by doing 8051's or Electronics in Iran. It depends on what you're up to. Are you
trying to make your own product or do you want to get employed in a company manufacturing electronic products.

As for the first one , I did done some products by myself and they made some money for me. A simple end-user product will need a well manufactured PCB, a Detailed Manual, Tecchnical and user Support, Supply and accessories, a Box, Etc . Also then you will have to beg a shopkeeper to sell it for you (The most annoying part) and some money for intial investement. In my experience this was a hard work as Jez said, Doing all these things were hard specially some of them which were completely irreleative to the field of interest of mine.

On the other hand as for getting employed in a company it is way much easier specially if you could find yourself a releated job to electronics in a company.

I would suggest you to search for a good Job in your area. After getting experienced to the market ,if you were certain to have the company of your won, you could try making your own products as the second job in your spare times.

Have you done the conscription (military service) ?

Good Luck
Farshid