We look at the division of 618581 by 52 
The aim is to understand the frequency of 52 in 618581.

Moving on to step 1:
The number 52 fits into 6 0 times, leaving a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 52

Moving on to step 2:
61 divided by 52 is 1 with a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 9 after subtracting 52 from 61.
Bring next digit (8) of the dividend behind the 9 and repeat the process: 98 / 52

Let's proceed to step 3:
52 can be fit into 98 1 times, resulting in a remainder of 46.
Put 1 as the next digit of the answer. 
Result so far: 11.0
If we subtract 52 from 98, we get 46.
Include the next digit (5) from the dividend after 46, then repeat: 465 / 52

Moving on to step 4:
465 divided by 52 is 8 with a remainder of 49.
The number 8 becomes the next digit in our result. 
Result so far: 118.0
Subtract 416 from 465 to get 49.
Fetch the next digit (8) from the dividend, attach it to 49 and continue: 498 / 52

Step 5:
If we divide 498 by 52, we get 9 and a remainder of 30.
Write down 9 as next digit of the result. 
Result so far: 1189.0
Subtract 468 from 498 to get 30.
Fetch the next digit (1) from the dividend, attach it to 30 and continue: 301 / 52

Going ahead to step 6:
When dividing 301 by 52, we get 5 with a remainder of 41.
Write down 5 as next digit of the result. 
Result so far: 11895.0
If we subtract 260 from 301, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 7:
When dividing 410 by 52, we get 7 with a remainder of 46.
The next digit of our result is 7. 
Result so far: 11895.7
If we take 364 away from 410, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 8:
460 divided by 52 is 8 with a remainder of 44.
Put 8 as the next digit of the answer. 
Result so far: 11895.78
Subtracting 416 from 460 leaves us with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 9:
52 can be fit into 440 8 times, resulting in a remainder of 24.
The next digit of our result is 8. 
Result so far: 11895.788
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.

Our division results in 11895.788 with a remaining 0.0024.