We look at the division of 449872 by 52 
The aim is to understand the frequency of 52 in 449872.

Step 1:
The number 52 fits into 4 0 times, leaving a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 4 leaves us with 4.
Fetch the next digit (4) from the dividend, attach it to 4 and continue: 44 / 52

Advancing to step 2:
44 divided by 52 is 0 with a remainder of 44.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 44 and we're left with 44.
Append the next digit (9) from the dividend to 44 and continue with: 449 / 52

Step 3:
When dividing 449 by 52, we get 8 with a remainder of 33.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Deduct 416 from 449 and we're left with 33.
Append the next digit (8) from the dividend to 33 and continue with: 338 / 52

Advancing to step 4:
If we divide 338 by 52, we get 6 and a remainder of 26.
Record the quotient 6 as the next digit in the result. 
Result so far: 86.0
If we take 312 away from 338, we end up with 26.
Bring next digit (7) of the dividend behind the 26 and repeat the process: 267 / 52

Going ahead to step 5:
If we divide 267 by 52, we get 5 and a remainder of 7.
The next digit of our result is 5. 
Result so far: 865.0
Subtract 260 from 267 to get 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 52

Let's proceed to step 6:
52 can be fit into 72 1 times, resulting in a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 8651.0
Subtracting 52 from 72 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 7:
If we divide 200 by 52, we get 3 and a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 8651.3
Deduct 156 from 200 and we're left 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.

Step 8:
52 goes into 440 8 times with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 8651.38
If we subtract 416 from 440, we 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.

On to step 9:
52 goes into 240 4 times with a remainder of 32.
The next digit of our result is 4. 
Result so far: 8651.384
If we subtract 208 from 240, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 10:
52 can be fit into 320 6 times, resulting in a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 8651.3846
Deduct 312 from 320 and we're left 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.

Advancing to step 11:
52 goes into 80 1 times with a remainder of 28.
The next digit of our result is 1. 
Result so far: 8651.38461
If we take 52 away from 80, 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.

Let's proceed to step 12:
52 can be fit into 280 5 times, resulting in a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 8651.384615
If we subtract 260 from 280, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 13:
If we divide 200 by 52, we get 3 and a remainder of 44.
Record the quotient 3 as the next digit in the result. 
Result so far: 8651.3846153
Subtract 156 from 200 to get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Advancing to step 14:
52 goes into 440 8 times with a remainder of 24.
Use 8 as the next digit of our solution. 
Result so far: 8651.38461538
Subtracting 416 from 440 leaves us 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.

The quotient of the division is 8651.38461538, and the remainder is 2.4e-08.