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Long Division: Remainder

Sometimes you will see an equations that has a number left over:

     
9)178

How many times does 9 go into 1? Zero. How many times does 9 go into 17? One time. 1 times 9 is 9:

   1
9)178
  -9
   8

Now we take the 8 at the bottom and put it together with the 8 at the top. 9 goes into 88 nine times:

   19 r 7
9)178
  -9
   88
  -81
    7 

The 7 is called the remainder. 9 goes into 178, 19 times, remainder 7.

You will learn more about the remainder in the units about fractions.