We're dividing 85577558 by 639 
We want to figure out the number of times 85577558 can be divided by 639.

Moving on to step 1:
8 divided by 639 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Include the next digit (5) from the dividend after 8, then repeat: 85 / 639

On to step 2:
85 divided by 639 is 0 with a remainder of 85.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 85, we end up with 85.
Grab the next digit (5) from the dividend, add it to 85, then carry on: 855 / 639

Advancing to step 3:
639 goes into 855 1 times with a remainder of 216.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 639 from 855 leaves us with 216.
Bring next digit (7) of the dividend behind the 216 and repeat the process: 2167 / 639

Moving on to step 4:
2167 divided by 639 is 3 with a remainder of 250.
Put 3 as the next digit of the answer. 
Result so far: 13.0
If we subtract 1917 from 2167, we get 250.
Bring next digit (7) of the dividend behind the 250 and repeat the process: 2507 / 639

Step 5:
639 can be fit into 2507 3 times, resulting in a remainder of 590.
Write down 3 as next digit of the result. 
Result so far: 133.0
If we take 1917 away from 2507, we end up with 590.
Bring next digit (5) of the dividend behind the 590 and repeat the process: 5905 / 639

Going ahead to step 6:
The number 639 fits into 5905 9 times, leaving a remainder of 154.
Record the quotient 9 as the next digit in the result. 
Result so far: 1339.0
If we take 5751 away from 5905, we end up with 154.
Bring next digit (5) of the dividend behind the 154 and repeat the process: 1545 / 639

On to step 7:
If we divide 1545 by 639, we get 2 and a remainder of 267.
The number 2 becomes the next digit in our result. 
Result so far: 13392.0
The remainder is 267 after subtracting 1278 from 1545.
Grab the next digit (8) from the dividend, add it to 267, then carry on: 2678 / 639

Step 8:
If we divide 2678 by 639, we get 4 and a remainder of 122.
Write down 4 as next digit of the result. 
Result so far: 133924.0
Subtract 2556 from 2678 to get 122.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1220, and continue the process.

On to step 9:
1220 divided by 639 is 1 with a remainder of 581.
Write down 1 as next digit of the result. 
Result so far: 133924.1
If we take 639 away from 1220, we end up with 581.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

Advancing to step 10:
639 can be fit into 5810 9 times, resulting in a remainder of 59.
Use 9 as the next digit of our solution. 
Result so far: 133924.19
Subtracting 5751 from 5810 leaves us with 59.
Since there are no more digits in the dividend, we add a zero to the remainder making it 590, and continue the process.

Step 11:
639 can be fit into 590 0 times, resulting in a remainder of 590.
Write down 0 as next digit of the result. 
Result so far: 133924.19
Subtract 0 from 590 to get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

Moving on to step 12:
639 goes into 5900 9 times with a remainder of 149.
Write down 9 as next digit of the result. 
Result so far: 133924.1909
The remainder is 149 after subtracting 5751 from 5900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Let's proceed to step 13:
The number 639 fits into 1490 2 times, leaving a remainder of 212.
Write down 2 as next digit of the result. 
Result so far: 133924.19092
Subtract 1278 from 1490 to get 212.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2120, and continue the process.

Advancing to step 14:
If we divide 2120 by 639, we get 3 and a remainder of 203.
Write down 3 as next digit of the result. 
Result so far: 133924.190923
Subtracting 1917 from 2120 leaves us with 203.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2030, and continue the process.

Moving on to step 15:
639 can be fit into 2030 3 times, resulting in a remainder of 113.
The number 3 becomes the next digit in our result. 
Result so far: 133924.1909233
Deduct 1917 from 2030 and we're left with 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

In conclusion, the division gives 133924.1909233 with a balance of 1.13e-06.