We look at the division of 639883 by 68 
We're looking to find how many times 68 goes into 639883.

Advancing to step 1:
The number 68 fits into 6 0 times, leaving 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.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 68

Going ahead to step 2:
63 divided by 68 is 0 with a remainder of 63.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 63 leaves us with 63.
Take the next digit (9) from the dividend and append it to 63, then repeat: 639 / 68

Advancing to step 3:
If we divide 639 by 68, we get 9 and a remainder of 27.
The next digit of our result is 9. 
Result so far: 9.0
The remainder is 27 after subtracting 612 from 639.
Append the next digit (8) from the dividend to 27 and continue with: 278 / 68

Going ahead to step 4:
68 goes into 278 4 times with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 94.0
The remainder is 6 after subtracting 272 from 278.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 68

Moving on to step 5:
68 can be fit into 68 1 times, resulting in a remainder of 0.
Record the quotient 1 as the next digit in the result. 
Result so far: 941.0
Deduct 68 from 68 and we're left with 0.
Append the next digit (3) from the dividend to 0 and continue with: 3 / 68

Moving on to step 6:
When dividing 3 by 68, we get 0 with a remainder of 3.
The next digit of our result is 0. 
Result so far: 9410.0
Deduct 0 from 3 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Let's proceed to step 7:
The number 68 fits into 30 0 times, leaving a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 9410.0
If we subtract 0 from 30, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
68 goes into 300 4 times with a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 9410.04
The remainder is 28 after subtracting 272 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 9:
If we divide 280 by 68, we get 4 and a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 9410.044
If we subtract 272 from 280, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final result is 9410.044 with a remainder of 0.0008.