Online job as a portfolio?

Do you think its possible to use your online job as a portfolio for the program your applying in? the reason im saying so, because i never had a real job really, all my jobs where online, simply because it pays me well while im at home, I don't wanna throw out numbers, but i guess i make the same amount a teacher would make if not more, if i work consistent. so my question is, is it possible?

I used stuff related to this when I applied to college. If you explain it correctly I'm sure you'd be fine.
edit: It was a business focused college that actually cared about past work experience.

Yes but I'd say to explain it all in full detail and also if it's related to the job you're applying for then yes use it.