253527 ÷ 51 
The aim is to understand the frequency of 51 in 253527.

Moving on to step 1:
When dividing 2 by 51, we get 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (5) from the dividend, add it to 2, then carry on: 25 / 51

Advancing to step 2:
When dividing 25 by 51, we get 0 with a remainder of 25.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 25, we end up with 25.
Fetch the next digit (3) from the dividend, attach it to 25 and continue: 253 / 51

Advancing to step 3:
When dividing 253 by 51, we get 4 with a remainder of 49.
Write down 4 as next digit of the result. 
Result so far: 4.0
Subtracting 204 from 253 leaves us with 49.
Include the next digit (5) from the dividend after 49, then repeat: 495 / 51

Going ahead to step 4:
51 can be fit into 495 9 times, resulting in a remainder of 36.
The next digit of our result is 9. 
Result so far: 49.0
Subtracting 459 from 495 leaves us with 36.
Bring next digit (2) of the dividend behind the 36 and repeat the process: 362 / 51

Step 5:
51 can be fit into 362 7 times, resulting in a remainder of 5.
The next digit of our result is 7. 
Result so far: 497.0
Subtract 357 from 362 to get 5.
Append the next digit (7) from the dividend to 5 and continue with: 57 / 51

Let's proceed to step 6:
57 divided by 51 is 1 with a remainder of 6.
The next digit of our result is 1. 
Result so far: 4971.0
If we subtract 51 from 57, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
When dividing 60 by 51, we get 1 with a remainder of 9.
The number 1 becomes the next digit in our result. 
Result so far: 4971.1
Subtracting 51 from 60 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Step 8:
90 divided by 51 is 1 with a remainder of 39.
Put 1 as the next digit of the answer. 
Result so far: 4971.11
Subtracting 51 from 90 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final outcome is 4971.11, with a leftover of 0.039.