We look at the division of 21283296 by 252 
The aim is to understand the frequency of 252 in 21283296.

Going ahead to step 1:
If we divide 2 by 252, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 252

Step 2:
The number 252 fits into 21 0 times, leaving a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Include the next digit (2) from the dividend after 21, then repeat: 212 / 252

Moving on to step 3:
If we divide 212 by 252, we get 0 and a remainder of 212.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 212 after subtracting 0 from 212.
Append the next digit (8) from the dividend to 212 and continue with: 2128 / 252

On to step 4:
2128 divided by 252 is 8 with a remainder of 112.
The next digit of our result is 8. 
Result so far: 8.0
The remainder is 112 after subtracting 2016 from 2128.
Bring next digit (3) of the dividend behind the 112 and repeat the process: 1123 / 252

Step 5:
252 goes into 1123 4 times with a remainder of 115.
The next digit of our result is 4. 
Result so far: 84.0
If we take 1008 away from 1123, we end up with 115.
Bring next digit (2) of the dividend behind the 115 and repeat the process: 1152 / 252

Let's proceed to step 6:
252 goes into 1152 4 times with a remainder of 144.
Put 4 as the next digit of the answer. 
Result so far: 844.0
If we subtract 1008 from 1152, we get 144.
Append the next digit (9) from the dividend to 144 and continue with: 1449 / 252

On to step 7:
252 can be fit into 1449 5 times, resulting in a remainder of 189.
Record the quotient 5 as the next digit in the result. 
Result so far: 8445.0
Subtracting 1260 from 1449 leaves us with 189.
Append the next digit (6) from the dividend to 189 and continue with: 1896 / 252

Step 8:
When dividing 1896 by 252, we get 7 with a remainder of 132.
Write down 7 as next digit of the result. 
Result so far: 84457.0
If we subtract 1764 from 1896, we get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Let's proceed to step 9:
252 can be fit into 1320 5 times, resulting in a remainder of 60.
Use 5 as the next digit of our solution. 
Result so far: 84457.5
Subtract 1260 from 1320 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 10:
252 goes into 600 2 times with a remainder of 96.
Record the quotient 2 as the next digit in the result. 
Result so far: 84457.52
Subtract 504 from 600 to get 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

Step 11:
252 goes into 960 3 times with a remainder of 204.
Write down 3 as next digit of the result. 
Result so far: 84457.523
The remainder is 204 after subtracting 756 from 960.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Step 12:
The number 252 fits into 2040 8 times, leaving a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 84457.5238
Subtract 2016 from 2040 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Let's proceed to step 13:
252 goes into 240 0 times with a remainder of 240.
Put 0 as the next digit of the answer. 
Result so far: 84457.5238
The remainder is 240 after subtracting 0 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Let's proceed to step 14:
If we divide 2400 by 252, we get 9 and a remainder of 132.
The number 9 becomes the next digit in our result. 
Result so far: 84457.523809
Subtract 2268 from 2400 to get 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Moving on to step 15:
If we divide 1320 by 252, we get 5 and a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 84457.5238095
If we take 1260 away from 1320, we end up with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 16:
When dividing 600 by 252, we get 2 with a remainder of 96.
Write down 2 as next digit of the result. 
Result so far: 84457.52380952
Subtracting 504 from 600 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

The final result is 84457.52380952 with a remainder of 9.6e-08.