Start from the right-most 7, and go one digit to the left each time: 7 - units place 7 - tens place 7 - hundreds place 3 - thousands place 2 - ten-thousands place 6 - hundred-thousands place 5 - millions place 4 - ten-millions place <----- answer to this question 1 - hundred-millions place 8 - billions place 0 - ten-billions place 9 - hundred billions place
