We look at the division of 45998596 by 252 
The aim is to understand the frequency of 252 in 45998596.

Advancing to step 1:
The number 252 fits into 4 0 times, leaving a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (5) from the dividend, attach it to 4 and continue: 45 / 252

Step 2:
252 can be fit into 45 0 times, resulting in a remainder of 45.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 45, we get 45.
Bring next digit (9) of the dividend behind the 45 and repeat the process: 459 / 252

Going ahead to step 3:
When dividing 459 by 252, we get 1 with a remainder of 207.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 252 from 459 to get 207.
Bring next digit (9) of the dividend behind the 207 and repeat the process: 2079 / 252

Let's proceed to step 4:
If we divide 2079 by 252, we get 8 and a remainder of 63.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtract 2016 from 2079 to get 63.
Include the next digit (8) from the dividend after 63, then repeat: 638 / 252

Moving on to step 5:
252 goes into 638 2 times with a remainder of 134.
Put 2 as the next digit of the answer. 
Result so far: 182.0
If we take 504 away from 638, we end up with 134.
Bring next digit (5) of the dividend behind the 134 and repeat the process: 1345 / 252

Step 6:
When dividing 1345 by 252, we get 5 with a remainder of 85.
Record the quotient 5 as the next digit in the result. 
Result so far: 1825.0
Subtract 1260 from 1345 to get 85.
Grab the next digit (9) from the dividend, add it to 85, then carry on: 859 / 252

On to step 7:
The number 252 fits into 859 3 times, leaving a remainder of 103.
The next digit of our result is 3. 
Result so far: 18253.0
Subtracting 756 from 859 leaves us with 103.
Include the next digit (6) from the dividend after 103, then repeat: 1036 / 252

Moving on to step 8:
252 goes into 1036 4 times with a remainder of 28.
The number 4 becomes the next digit in our result. 
Result so far: 182534.0
If we take 1008 away from 1036, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 9:
If we divide 280 by 252, we get 1 and a remainder of 28.
Record the quotient 1 as the next digit in the result. 
Result so far: 182534.1
If we take 252 away from 280, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

On to step 10:
252 goes into 280 1 times with a remainder of 28.
The next digit of our result is 1. 
Result so far: 182534.11
Deduct 252 from 280 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

The final outcome is 182534.11, with a leftover of 0.028.