251537 ÷ 4 
The aim is to understand the frequency of 4 in 251537.

Going ahead to step 1:
2 divided by 4 is 0 with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 4

Step 2:
The number 4 fits into 25 6 times, leaving a remainder of 1.
Use 6 as the next digit of our solution. 
Result so far: 6.0
The remainder is 1 after subtracting 24 from 25.
Append the next digit (1) from the dividend to 1 and continue with: 11 / 4

Let's proceed to step 3:
4 can be fit into 11 2 times, resulting in a remainder of 3.
The next digit of our result is 2. 
Result so far: 62.0
Deduct 8 from 11 and we're left with 3.
Fetch the next digit (5) from the dividend, attach it to 3 and continue: 35 / 4

Let's proceed to step 4:
When dividing 35 by 4, we get 8 with a remainder of 3.
The next digit of our result is 8. 
Result so far: 628.0
If we take 32 away from 35, we end up with 3.
Take the next digit (3) from the dividend and append it to 3, then repeat: 33 / 4

Moving on to step 5:
33 divided by 4 is 8 with a remainder of 1.
Put 8 as the next digit of the answer. 
Result so far: 6288.0
If we subtract 32 from 33, we get 1.
Fetch the next digit (7) from the dividend, attach it to 1 and continue: 17 / 4

Going ahead to step 6:
The number 4 fits into 17 4 times, leaving a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 62884.0
Subtract 16 from 17 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 7:
The number 4 fits into 10 2 times, leaving a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 62884.2
Deduct 8 from 10 and we're left 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.

Going ahead to step 8:
If we divide 20 by 4, we get 5 and a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 62884.25
If we subtract 20 from 20, 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 9:
4 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 62884.25
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.

Going ahead to step 10:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 62884.25
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 62884.25 with a remainder of 0.0.