We look at the division of 125710 by 4 
The aim is to understand the frequency of 4 in 125710.

Step 1:
4 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 4

Going ahead to step 2:
4 can be fit into 12 3 times, resulting in a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
Deduct 12 from 12 and we're left with 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 4

Step 3:
When dividing 5 by 4, we get 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
If we take 4 away from 5, we end up with 1.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 4

Going ahead to step 4:
If we divide 17 by 4, we get 4 and a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 314.0
Subtracting 16 from 17 leaves us with 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 4

Let's proceed to step 5:
The number 4 fits into 11 2 times, leaving a remainder of 3.
The next digit of our result is 2. 
Result so far: 3142.0
If we take 8 away from 11, we end up with 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 4

Going ahead to step 6:
If we divide 30 by 4, we get 7 and a remainder of 2.
The next digit of our result is 7. 
Result so far: 31427.0
Subtracting 28 from 30 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 7:
20 divided by 4 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 31427.5
Subtract 20 from 20 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.

Step 8:
0 divided by 4 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 31427.5
Subtracting 0 from 0 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.

On to step 9:
The number 4 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 31427.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 31427.5 and a remainder of 0.0.