Let's divide 639680 by 55
We want to divide 639680 by 55.

On to step 1:
55 goes into 6 0 times with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (3) from the dividend, attach it to 6 and continue: 63 / 55

Moving on to step 2:
If we divide 63 by 55, we get 1 and a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we subtract 55 from 63, we get 8.
Grab the next digit (9) from the dividend, add it to 8, then carry on: 89 / 55

On to step 3:
If we divide 89 by 55, we get 1 and a remainder of 34.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
If we subtract 55 from 89, we get 34.
Fetch the next digit (6) from the dividend, attach it to 34 and continue: 346 / 55

Moving on to step 4:
If we divide 346 by 55, we get 6 and a remainder of 16.
Put 6 as the next digit of the answer. 
Result so far: 116.0
Subtract 330 from 346 to get 16.
Include the next digit (8) from the dividend after 16, then repeat: 168 / 55

Moving on to step 5:
168 divided by 55 is 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 1163.0
If we subtract 165 from 168, we get 3.
Grab the next digit (0) from the dividend, add it to 3, then carry on: 30 / 55

Going ahead to step 6:
30 divided by 55 is 0 with a remainder of 30.
Put 0 as the next digit of the answer. 
Result so far: 11630.0
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 7:
55 goes into 300 5 times with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 11630.5
The remainder is 25 after subtracting 275 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Advancing to step 8:
55 can be fit into 250 4 times, resulting in a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 11630.54
Subtracting 220 from 250 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 9:
55 goes into 300 5 times with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 11630.545
Subtract 275 from 300 to get 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 10:
If we divide 250 by 55, we get 4 and a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 11630.5454
If we subtract 220 from 250, 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.

Let's proceed to step 11:
55 goes into 300 5 times with a remainder of 25.
Use 5 as the next digit of our solution. 
Result so far: 11630.54545
If we take 275 away from 300, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Step 12:
The number 55 fits into 250 4 times, leaving a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 11630.545454
The remainder is 30 after subtracting 220 from 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 13:
The number 55 fits into 300 5 times, leaving a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 11630.5454545
Subtracting 275 from 300 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

On to step 14:
If we divide 250 by 55, we get 4 and a remainder of 30.
The number 4 becomes the next digit in our result. 
Result so far: 11630.54545454
If we take 220 away from 250, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The final outcome is 11630.54545454, with a leftover of 3e-08.