where can i find a financial calculator that will tell me how much of my monthly payment is going to interest?

I have a monthly payment of 0 and a total debt of ,000 and i need to find out how much of that 0 is going towards interest (14%) and how much is going towards my debt payment. is there a calculator online that could figure this out for me? or a way to figure [...] http://bit.ly/k73NRV