We look at the division of 80948570 by 639 
Let's see how many times 639 fits into 80948570.

Going ahead to step 1:
If we divide 8 by 639, we get 0 and a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Fetch the next digit (0) from the dividend, attach it to 8 and continue: 80 / 639

On to step 2:
The number 639 fits into 80 0 times, leaving a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Grab the next digit (9) from the dividend, add it to 80, then carry on: 809 / 639

Going ahead to step 3:
639 goes into 809 1 times with a remainder of 170.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 639 from 809 and we're left with 170.
Grab the next digit (4) from the dividend, add it to 170, then carry on: 1704 / 639

Moving on to step 4:
The number 639 fits into 1704 2 times, leaving a remainder of 426.
The next digit of our result is 2. 
Result so far: 12.0
If we subtract 1278 from 1704, we get 426.
Append the next digit (8) from the dividend to 426 and continue with: 4268 / 639

Going ahead to step 5:
639 can be fit into 4268 6 times, resulting in a remainder of 434.
Put 6 as the next digit of the answer. 
Result so far: 126.0
Subtracting 3834 from 4268 leaves us with 434.
Take the next digit (5) from the dividend and append it to 434, then repeat: 4345 / 639

Moving on to step 6:
The number 639 fits into 4345 6 times, leaving a remainder of 511.
Write down 6 as next digit of the result. 
Result so far: 1266.0
Subtracting 3834 from 4345 leaves us with 511.
Fetch the next digit (7) from the dividend, attach it to 511 and continue: 5117 / 639

Moving on to step 7:
If we divide 5117 by 639, we get 8 and a remainder of 5.
Record the quotient 8 as the next digit in the result. 
Result so far: 12668.0
The remainder is 5 after subtracting 5112 from 5117.
Grab the next digit (0) from the dividend, add it to 5, then carry on: 50 / 639

On to step 8:
639 can be fit into 50 0 times, resulting in a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 126680.0
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Let's proceed to step 9:
If we divide 500 by 639, we get 0 and a remainder of 500.
Record the quotient 0 as the next digit in the result. 
Result so far: 126680.0
If we take 0 away from 500, we end up with 500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5000, and continue the process.

Moving on to step 10:
The number 639 fits into 5000 7 times, leaving a remainder of 527.
Use 7 as the next digit of our solution. 
Result so far: 126680.07
Deduct 4473 from 5000 and we're left with 527.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5270, and continue the process.

Let's proceed to step 11:
When dividing 5270 by 639, we get 8 with a remainder of 158.
Put 8 as the next digit of the answer. 
Result so far: 126680.078
Subtract 5112 from 5270 to get 158.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1580, and continue the process.

Let's proceed to step 12:
If we divide 1580 by 639, we get 2 and a remainder of 302.
The next digit of our result is 2. 
Result so far: 126680.0782
Subtract 1278 from 1580 to get 302.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3020, and continue the process.

On to step 13:
When dividing 3020 by 639, we get 4 with a remainder of 464.
Write down 4 as next digit of the result. 
Result so far: 126680.07824
If we subtract 2556 from 3020, we get 464.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4640, and continue the process.

Moving on to step 14:
4640 divided by 639 is 7 with a remainder of 167.
Write down 7 as next digit of the result. 
Result so far: 126680.078247
If we take 4473 away from 4640, we end up with 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

On to step 15:
639 goes into 1670 2 times with a remainder of 392.
Record the quotient 2 as the next digit in the result. 
Result so far: 126680.0782472
Subtracting 1278 from 1670 leaves us with 392.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3920, and continue the process.

On to step 16:
If we divide 3920 by 639, we get 6 and a remainder of 86.
Record the quotient 6 as the next digit in the result. 
Result so far: 126680.07824726
If we subtract 3834 from 3920, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

The final outcome is 126680.07824726, with a leftover of 8.6e-08.