We're dividing 525808 by 51 
The aim is to understand the frequency of 51 in 525808.

Let's proceed to step 1:
51 can be fit into 5 0 times, resulting in a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Include the next digit (2) from the dividend after 5, then repeat: 52 / 51

Moving on to step 2:
51 goes into 52 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 51 from 52, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 51

Moving on to step 3:
If we divide 15 by 51, we get 0 and a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 10.0
If we subtract 0 from 15, we get 15.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 51

Let's proceed to step 4:
When dividing 158 by 51, we get 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 103.0
The remainder is 5 after subtracting 153 from 158.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 51

Advancing to step 5:
If we divide 50 by 51, we get 0 and a remainder of 50.
Use 0 as the next digit of our solution. 
Result so far: 1030.0
Subtracting 0 from 50 leaves us with 50.
Take the next digit (8) from the dividend and append it to 50, then repeat: 508 / 51

Going ahead to step 6:
If we divide 508 by 51, we get 9 and a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 10309.0
If we take 459 away from 508, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Going ahead to step 7:
51 can be fit into 490 9 times, resulting in a remainder of 31.
Put 9 as the next digit of the answer. 
Result so far: 10309.9
If we take 459 away from 490, we end up 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.

On to step 8:
The number 51 fits into 310 6 times, leaving a remainder of 4.
Write down 6 as next digit of the result. 
Result so far: 10309.96
Subtracting 306 from 310 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
When dividing 40 by 51, we get 0 with a remainder of 40.
The next digit of our result is 0. 
Result so far: 10309.96
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Step 10:
400 divided by 51 is 7 with a remainder of 43.
Write down 7 as next digit of the result. 
Result so far: 10309.9607
If we subtract 357 from 400, we get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Moving on to step 11:
If we divide 430 by 51, we get 8 and a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 10309.96078
Subtracting 408 from 430 leaves us 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.

Step 12:
If we divide 220 by 51, we get 4 and a remainder of 16.
Record the quotient 4 as the next digit in the result. 
Result so far: 10309.960784
Subtracting 204 from 220 leaves us 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.

Let's proceed to step 13:
160 divided by 51 is 3 with a remainder of 7.
The number 3 becomes the next digit in our result. 
Result so far: 10309.9607843
If we take 153 away from 160, we end up 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.

Step 14:
51 goes into 70 1 times with a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 10309.96078431
The remainder is 19 after subtracting 51 from 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Our division results in 10309.96078431 with a remaining 1.9e-08.