We're dividing 85939475 by 640 
We want to divide 85939475 by 640.

Step 1:
8 divided by 640 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.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 640

Moving on to step 2:
When dividing 85 by 640, we get 0 with a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 85 to get 85.
Take the next digit (9) from the dividend and append it to 85, then repeat: 859 / 640

Let's proceed to step 3:
859 divided by 640 is 1 with a remainder of 219.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 640 from 859, we get 219.
Fetch the next digit (3) from the dividend, attach it to 219 and continue: 2193 / 640

On to step 4:
640 can be fit into 2193 3 times, resulting in a remainder of 273.
Write down 3 as next digit of the result. 
Result so far: 13.0
Deduct 1920 from 2193 and we're left with 273.
Fetch the next digit (9) from the dividend, attach it to 273 and continue: 2739 / 640

Going ahead to step 5:
640 can be fit into 2739 4 times, resulting in a remainder of 179.
Write down 4 as next digit of the result. 
Result so far: 134.0
The remainder is 179 after subtracting 2560 from 2739.
Fetch the next digit (4) from the dividend, attach it to 179 and continue: 1794 / 640

Going ahead to step 6:
640 goes into 1794 2 times with a remainder of 514.
The number 2 becomes the next digit in our result. 
Result so far: 1342.0
If we subtract 1280 from 1794, we get 514.
Include the next digit (7) from the dividend after 514, then repeat: 5147 / 640

On to step 7:
5147 divided by 640 is 8 with a remainder of 27.
The next digit of our result is 8. 
Result so far: 13428.0
Subtract 5120 from 5147 to get 27.
Include the next digit (5) from the dividend after 27, then repeat: 275 / 640

Moving on to step 8:
If we divide 275 by 640, we get 0 and a remainder of 275.
The next digit of our result is 0. 
Result so far: 134280.0
If we subtract 0 from 275, we get 275.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2750, and continue the process.

Let's proceed to step 9:
2750 divided by 640 is 4 with a remainder of 190.
Use 4 as the next digit of our solution. 
Result so far: 134280.4
If we subtract 2560 from 2750, we get 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Advancing to step 10:
When dividing 1900 by 640, we get 2 with a remainder of 620.
Put 2 as the next digit of the answer. 
Result so far: 134280.42
If we take 1280 away from 1900, we end up with 620.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

Advancing to step 11:
If we divide 6200 by 640, we get 9 and a remainder of 440.
Record the quotient 9 as the next digit in the result. 
Result so far: 134280.429
If we subtract 5760 from 6200, we get 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

On to step 12:
640 can be fit into 4400 6 times, resulting in a remainder of 560.
The next digit of our result is 6. 
Result so far: 134280.4296
Subtracting 3840 from 4400 leaves us with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 13:
When dividing 5600 by 640, we get 8 with a remainder of 480.
Write down 8 as next digit of the result. 
Result so far: 134280.42968
Subtract 5120 from 5600 to get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Moving on to step 14:
When dividing 4800 by 640, we get 7 with a remainder of 320.
Write down 7 as next digit of the result. 
Result so far: 134280.429687
If we subtract 4480 from 4800, we get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 15:
The number 640 fits into 3200 5 times, leaving a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 134280.4296875
Subtracting 3200 from 3200 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 16:
When dividing 0 by 640, we get 0 with a remainder of 0.
The next digit of our result is 0. 
Result so far: 134280.4296875
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 134280.4296875 with a balance of 0.0.