We're dividing 251815 by 52 
The aim is to understand the frequency of 52 in 251815.

Advancing to step 1:
52 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 52

Going ahead to step 2:
If we divide 25 by 52, we get 0 and a remainder of 25.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 25 to get 25.
Bring next digit (1) of the dividend behind the 25 and repeat the process: 251 / 52

Let's proceed to step 3:
If we divide 251 by 52, we get 4 and a remainder of 43.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 208 away from 251, we end up with 43.
Append the next digit (8) from the dividend to 43 and continue with: 438 / 52

Step 4:
The number 52 fits into 438 8 times, leaving a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
If we take 416 away from 438, we end up with 22.
Append the next digit (1) from the dividend to 22 and continue with: 221 / 52

Let's proceed to step 5:
52 can be fit into 221 4 times, resulting in a remainder of 13.
Use 4 as the next digit of our solution. 
Result so far: 484.0
If we subtract 208 from 221, we get 13.
Fetch the next digit (5) from the dividend, attach it to 13 and continue: 135 / 52

Let's proceed to step 6:
The number 52 fits into 135 2 times, leaving a remainder of 31.
The next digit of our result is 2. 
Result so far: 4842.0
Deduct 104 from 135 and we're left with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Going ahead to step 7:
When dividing 310 by 52, we get 5 with a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 4842.5
Subtracting 260 from 310 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 8:
If we divide 500 by 52, we get 9 and a remainder of 32.
Record the quotient 9 as the next digit in the result. 
Result so far: 4842.59
Subtract 468 from 500 to 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.

Let's proceed to step 9:
52 goes into 320 6 times with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 4842.596
If we subtract 312 from 320, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 10:
52 goes into 80 1 times with a remainder of 28.
Put 1 as the next digit of the answer. 
Result so far: 4842.5961
Subtracting 52 from 80 leaves us with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 11:
280 divided by 52 is 5 with a remainder of 20.
The next digit of our result is 5. 
Result so far: 4842.59615
If we take 260 away from 280, we end up 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.

Moving on to step 12:
200 divided by 52 is 3 with a remainder of 44.
Write down 3 as next digit of the result. 
Result so far: 4842.596153
If we subtract 156 from 200, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 13:
440 divided by 52 is 8 with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 4842.5961538
Deduct 416 from 440 and we're left with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Moving on to step 14:
If we divide 240 by 52, we get 4 and a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 4842.59615384
Subtract 208 from 240 to 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.

The quotient of the division is 4842.59615384, and the remainder is 3.2e-08.