I have a question about the process of the resignation letter? If i fill my resignation letter how many months or days process?

I have no idea what you are talking about.

If you turn in a resignation letter, your boss can accept your resignation immediately.

I have a question about the process of the resignation letter? If i fill my resignation letter how many months or days process?

The process of a resignation letter? I don't have a clue what you're talking about either. If you're asking what period of advance notice is customarily given by an employee who is resigning, it's two weeks.

Usually two weeks notice is given for resignation (unless you have a contract saying different) though your employer can accept your resignation immediately (unless there is a contract to the contrary).

If your question is something different, please let us know.