We look at the division of 431039 by 52 
The aim is to understand the frequency of 52 in 431039.

Step 1:
4 divided by 52 is 0 with a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 4, we end up with 4.
Grab the next digit (3) from the dividend, add it to 4, then carry on: 43 / 52

On to step 2:
52 can be fit into 43 0 times, resulting in a remainder of 43.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 43 leaves us with 43.
Take the next digit (1) from the dividend and append it to 43, then repeat: 431 / 52

Going ahead to step 3:
431 divided by 52 is 8 with a remainder of 15.
Write down 8 as next digit of the result. 
Result so far: 8.0
If we subtract 416 from 431, we get 15.
Append the next digit (0) from the dividend to 15 and continue with: 150 / 52

Let's proceed to step 4:
52 can be fit into 150 2 times, resulting in a remainder of 46.
Record the quotient 2 as the next digit in the result. 
Result so far: 82.0
If we subtract 104 from 150, we get 46.
Take the next digit (3) from the dividend and append it to 46, then repeat: 463 / 52

Step 5:
463 divided by 52 is 8 with a remainder of 47.
Use 8 as the next digit of our solution. 
Result so far: 828.0
Subtract 416 from 463 to get 47.
Take the next digit (9) from the dividend and append it to 47, then repeat: 479 / 52

Going ahead to step 6:
The number 52 fits into 479 9 times, leaving a remainder of 11.
The next digit of our result is 9. 
Result so far: 8289.0
Subtract 468 from 479 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 7:
When dividing 110 by 52, we get 2 with a remainder of 6.
The number 2 becomes the next digit in our result. 
Result so far: 8289.2
If we subtract 104 from 110, 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.

Going ahead to step 8:
When dividing 60 by 52, we get 1 with a remainder of 8.
Put 1 as the next digit of the answer. 
Result so far: 8289.21
If we take 52 away from 60, we end up with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Step 9:
The number 52 fits into 80 1 times, leaving a remainder of 28.
Write down 1 as next digit of the result. 
Result so far: 8289.211
Subtract 52 from 80 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.

Our division results in 8289.211 with a remaining 0.0028.