85639 ÷ 9 = 9515 R4
Let's divide 85639 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 (5) of the dividend behind the 8 and repeat the process: 85 / 9

Step 2:
9 goes into 85 9 times with a remainder of 4.
Write down 9 as next digit of of the result. 
Result so far: 9
Subtract 81 from 85 to get 4.
Bring next digit (6) of the dividend behind the 4 and repeat the process: 46 / 9

Step 3:
9 goes into 46 5 times with a remainder of 1.
Write down 5 as next digit of of the result. 
Result so far: 95
Subtract 45 from 46 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 9

Step 4:
9 goes into 13 1 times with a remainder of 4.
Write down 1 as next digit of of the result. 
Result so far: 951
Subtract 9 from 13 to get 4.
Bring next digit (9) of the dividend behind the 4 and repeat the process: 49 / 9

Step 5:
9 goes into 49 5 times with a remainder of 4.
Write down 5 as next digit of of the result. 
Result so far: 9515
Subtract 45 from 49 to get 4.

The final result is 9515 with a remainder of 4.