We look at the division of 15292 by 51 
The aim is to understand the frequency of 51 in 15292.

Advancing to step 1:
When dividing 1 by 51, we get 0 with a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (5) from the dividend after 1, then repeat: 15 / 51

Step 2:
The number 51 fits into 15 0 times, leaving a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Bring next digit (2) of the dividend behind the 15 and repeat the process: 152 / 51

On to step 3:
When dividing 152 by 51, we get 2 with a remainder of 50.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
The remainder is 50 after subtracting 102 from 152.
Take the next digit (9) from the dividend and append it to 50, then repeat: 509 / 51

Advancing to step 4:
51 goes into 509 9 times with a remainder of 50.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
Subtract 459 from 509 to get 50.
Fetch the next digit (2) from the dividend, attach it to 50 and continue: 502 / 51

Let's proceed to step 5:
51 can be fit into 502 9 times, resulting in a remainder of 43.
The number 9 becomes the next digit in our result. 
Result so far: 299.0
Subtracting 459 from 502 leaves us with 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 6:
430 divided by 51 is 8 with a remainder of 22.
Put 8 as the next digit of the answer. 
Result so far: 299.8
Deduct 408 from 430 and we're left with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 7:
51 goes into 220 4 times with a remainder of 16.
Use 4 as the next digit of our solution. 
Result so far: 299.84
If we take 204 away from 220, we end up with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

On to step 8:
If we divide 160 by 51, we get 3 and a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 299.843
Subtracting 153 from 160 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 9:
The number 51 fits into 70 1 times, leaving a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 299.8431
If we subtract 51 from 70, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 10:
When dividing 190 by 51, we get 3 with a remainder of 37.
Write down 3 as next digit of the result. 
Result so far: 299.84313
Subtract 153 from 190 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

On to step 11:
The number 51 fits into 370 7 times, leaving a remainder of 13.
The next digit of our result is 7. 
Result so far: 299.843137
Subtracting 357 from 370 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 12:
When dividing 130 by 51, we get 2 with a remainder of 28.
Put 2 as the next digit of the answer. 
Result so far: 299.8431372
Subtract 102 from 130 to get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Advancing to step 13:
51 can be fit into 280 5 times, resulting in a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 299.84313725
Subtracting 255 from 280 leaves us with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Our division results in 299.84313725 with a remaining 2.5e-08.