Let's divide 639629 by 9
Let's see how many times 9 fits into 639629.

Going ahead to step 1:
9 goes into 6 0 times with a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Include the next digit (3) from the dividend after 6, then repeat: 63 / 9

On to step 2:
9 goes into 63 7 times with a remainder of 0.
The next digit of our result is 7. 
Result so far: 7.0
Deduct 63 from 63 and we're left with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 9

Moving on to step 3:
If we divide 9 by 9, we get 1 and a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 71.0
Subtracting 9 from 9 leaves us with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 9

Let's proceed to step 4:
If we divide 6 by 9, we get 0 and a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 710.0
If we take 0 away from 6, we end up with 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 9

Moving on to step 5:
If we divide 62 by 9, we get 6 and a remainder of 8.
The number 6 becomes the next digit in our result. 
Result so far: 7106.0
Subtract 54 from 62 to get 8.
Include the next digit (9) from the dividend after 8, then repeat: 89 / 9

Going ahead to step 6:
89 divided by 9 is 9 with a remainder of 8.
Use 9 as the next digit of our solution. 
Result so far: 71069.0
If we take 81 away from 89, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Going ahead to step 7:
If we divide 80 by 9, we get 8 and a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 71069.8
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

On to step 8:
80 divided by 9 is 8 with a remainder of 8.
Write down 8 as next digit of the result. 
Result so far: 71069.88
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 71069.88, and the remainder is 0.008.