We look at the division of 39139085 by 128 
Our goal is to divide 39139085 by 128.

On to step 1:
The number 128 fits into 3 0 times, leaving a remainder of 3.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (9) from the dividend, attach it to 3 and continue: 39 / 128

Advancing to step 2:
39 divided by 128 is 0 with a remainder of 39.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 39, we end up with 39.
Include the next digit (1) from the dividend after 39, then repeat: 391 / 128

Advancing to step 3:
If we divide 391 by 128, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Subtract 384 from 391 to get 7.
Fetch the next digit (3) from the dividend, attach it to 7 and continue: 73 / 128

Step 4:
73 divided by 128 is 0 with a remainder of 73.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Subtract 0 from 73 to get 73.
Append the next digit (9) from the dividend to 73 and continue with: 739 / 128

Step 5:
739 divided by 128 is 5 with a remainder of 99.
Write down 5 as next digit of the result. 
Result so far: 305.0
If we subtract 640 from 739, we get 99.
Take the next digit (0) from the dividend and append it to 99, then repeat: 990 / 128

On to step 6:
If we divide 990 by 128, we get 7 and a remainder of 94.
Use 7 as the next digit of our solution. 
Result so far: 3057.0
The remainder is 94 after subtracting 896 from 990.
Fetch the next digit (8) from the dividend, attach it to 94 and continue: 948 / 128

Moving on to step 7:
The number 128 fits into 948 7 times, leaving a remainder of 52.
The next digit of our result is 7. 
Result so far: 30577.0
Subtract 896 from 948 to get 52.
Fetch the next digit (5) from the dividend, attach it to 52 and continue: 525 / 128

Going ahead to step 8:
525 divided by 128 is 4 with a remainder of 13.
The number 4 becomes the next digit in our result. 
Result so far: 305774.0
Subtract 512 from 525 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 9:
The number 128 fits into 130 1 times, leaving a remainder of 2.
Put 1 as the next digit of the answer. 
Result so far: 305774.1
Subtracting 128 from 130 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
20 divided by 128 is 0 with a remainder of 20.
The number 0 becomes the next digit in our result. 
Result so far: 305774.1
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
200 divided by 128 is 1 with a remainder of 72.
Put 1 as the next digit of the answer. 
Result so far: 305774.101
If we subtract 128 from 200, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Step 12:
When dividing 720 by 128, we get 5 with a remainder of 80.
Use 5 as the next digit of our solution. 
Result so far: 305774.1015
If we subtract 640 from 720, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Step 13:
When dividing 800 by 128, we get 6 with a remainder of 32.
Put 6 as the next digit of the answer. 
Result so far: 305774.10156
If we subtract 768 from 800, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Going ahead to step 14:
The number 128 fits into 320 2 times, leaving a remainder of 64.
Write down 2 as next digit of the result. 
Result so far: 305774.101562
If we take 256 away from 320, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 15:
128 goes into 640 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 305774.1015625
Subtracting 640 from 640 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.

Moving on to step 16:
128 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 305774.1015625
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 305774.1015625, and the remainder is 0.0.