80660 ÷ 9 = 8962 R2
Let's divide 80660 by 9.

Step 1:
9 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 8 to get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 9

Step 2:
9 goes into 80 8 times with a remainder of 8.
Write down 8 as next digit of of the result. 
Result so far: 8
Subtract 72 from 80 to get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 9

Step 3:
9 goes into 86 9 times with a remainder of 5.
Write down 9 as next digit of of the result. 
Result so far: 89
Subtract 81 from 86 to get 5.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 9

Step 4:
9 goes into 56 6 times with a remainder of 2.
Write down 6 as next digit of of the result. 
Result so far: 896
Subtract 54 from 56 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 9

Step 5:
9 goes into 20 2 times with a remainder of 2.
Write down 2 as next digit of of the result. 
Result so far: 8962
Subtract 18 from 20 to get 2.

The final result is 8962 with a remainder of 2.