We divide 128512 by 4
The aim is to understand the frequency of 4 in 128512.

Going ahead to step 1:
4 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 4

Going ahead to step 2:
If we divide 12 by 4, we get 3 and a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 12 from 12, we get 0.
Fetch the next digit (8) from the dividend, attach it to 0 and continue: 8 / 4

Going ahead to step 3:
If we divide 8 by 4, we get 2 and a remainder of 0.
Put 2 as the next digit of the answer. 
Result so far: 32.0
Subtract 8 from 8 to get 0.
Bring next digit (5) of the dividend behind the 0 and repeat the process: 5 / 4

Going ahead to step 4:
The number 4 fits into 5 1 times, leaving a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 321.0
If we subtract 4 from 5, we get 1.
Bring next digit (1) of the dividend behind the 1 and repeat the process: 11 / 4

Step 5:
4 goes into 11 2 times with a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 3212.0
If we subtract 8 from 11, we get 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 4

Going ahead to step 6:
4 goes into 32 8 times with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 32128.0
If we subtract 32 from 32, 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.

Advancing to step 7:
The number 4 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 32128.0
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.

On to step 8:
0 divided by 4 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 32128.0
If we subtract 0 from 0, 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.

The final result is 32128.0 with a remainder of 0.0.