When counting in binary the thing that you must remember is that there are only zeros ( 0 ) and ones ( 1 ). This makes it easier to explain how the counting in different systems work. Take a number then, using the table below divide the number starting from left to right by the number above the empty row. Then taking the whole numbers and placing them into the slot for the number that you divided by, then take that number and multiply it by the number you placed into the place holder and subtracting the result from the original number, thus giving you a new "original number". The number remaining is then divided by the next number to the right, repeating the steps above.