We look at the division of 43937263 by 128 
The aim is to understand the frequency of 128 in 43937263.

Going ahead to step 1:
When dividing 4 by 128, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 128

On to step 2:
43 divided by 128 is 0 with a remainder of 43.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 43 and we're left with 43.
Include the next digit (9) from the dividend after 43, then repeat: 439 / 128

Step 3:
439 divided by 128 is 3 with a remainder of 55.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Deduct 384 from 439 and we're left with 55.
Bring next digit (3) of the dividend behind the 55 and repeat the process: 553 / 128

Advancing to step 4:
The number 128 fits into 553 4 times, leaving a remainder of 41.
Write down 4 as next digit of the result. 
Result so far: 34.0
If we subtract 512 from 553, we get 41.
Take the next digit (7) from the dividend and append it to 41, then repeat: 417 / 128

Advancing to step 5:
If we divide 417 by 128, we get 3 and a remainder of 33.
Record the quotient 3 as the next digit in the result. 
Result so far: 343.0
Subtract 384 from 417 to get 33.
Fetch the next digit (2) from the dividend, attach it to 33 and continue: 332 / 128

Going ahead to step 6:
If we divide 332 by 128, we get 2 and a remainder of 76.
Write down 2 as next digit of the result. 
Result so far: 3432.0
The remainder is 76 after subtracting 256 from 332.
Include the next digit (6) from the dividend after 76, then repeat: 766 / 128

Moving on to step 7:
If we divide 766 by 128, we get 5 and a remainder of 126.
Put 5 as the next digit of the answer. 
Result so far: 34325.0
If we take 640 away from 766, we end up with 126.
Fetch the next digit (3) from the dividend, attach it to 126 and continue: 1263 / 128

Advancing to step 8:
1263 divided by 128 is 9 with a remainder of 111.
Use 9 as the next digit of our solution. 
Result so far: 343259.0
Subtract 1152 from 1263 to get 111.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1110, and continue the process.

Moving on to step 9:
1110 divided by 128 is 8 with a remainder of 86.
The next digit of our result is 8. 
Result so far: 343259.8
Subtract 1024 from 1110 to 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.

Let's proceed to step 10:
The number 128 fits into 860 6 times, leaving a remainder of 92.
Record the quotient 6 as the next digit in the result. 
Result so far: 343259.86
Deduct 768 from 860 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

On to step 11:
128 goes into 920 7 times with a remainder of 24.
The next digit of our result is 7. 
Result so far: 343259.867
If we subtract 896 from 920, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 12:
The number 128 fits into 240 1 times, leaving a remainder of 112.
Record the quotient 1 as the next digit in the result. 
Result so far: 343259.8671
Deduct 128 from 240 and we're left with 112.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Going ahead to step 13:
128 goes into 1120 8 times with a remainder of 96.
The number 8 becomes the next digit in our result. 
Result so far: 343259.86718
If we take 1024 away from 1120, we end up with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

On to step 14:
128 can be fit into 960 7 times, resulting in a remainder of 64.
Use 7 as the next digit of our solution. 
Result so far: 343259.867187
Subtract 896 from 960 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 15:
When dividing 640 by 128, we get 5 with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 343259.8671875
If we subtract 640 from 640, we 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.

On to step 16:
If we divide 0 by 128, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 343259.8671875
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 final result is 343259.8671875 with a remainder of 0.0.