I can't speak for MIT as I'm from Purdue, but as I understand it the process is basically the same as it would be for a person from this country. Universities typically divide tuition fees into two categories, in-state and out-of-state. You would fall into the later category, simple enough. As for being from outside the country you are more likely than others to get accepted to the school as they are always striving for a diverse student body. Simply put, you should just apply and see what they say. If you have really good grades and SAT or ACT scores you should be fine, despite the fact that MIT is a very competitive school.