We look at the division of 52491386 by 450 
The aim is to understand the frequency of 450 in 52491386.

Moving on to step 1:
450 can be fit into 5 0 times, resulting in a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 450

Going ahead to step 2:
450 goes into 52 0 times with a remainder of 52.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 52, we get 52.
Take the next digit (4) from the dividend and append it to 52, then repeat: 524 / 450

On to step 3:
524 divided by 450 is 1 with a remainder of 74.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 450 from 524, we get 74.
Include the next digit (9) from the dividend after 74, then repeat: 749 / 450

Advancing to step 4:
450 goes into 749 1 times with a remainder of 299.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
The remainder is 299 after subtracting 450 from 749.
Append the next digit (1) from the dividend to 299 and continue with: 2991 / 450

Going ahead to step 5:
450 goes into 2991 6 times with a remainder of 291.
Use 6 as the next digit of our solution. 
Result so far: 116.0
Subtract 2700 from 2991 to get 291.
Include the next digit (3) from the dividend after 291, then repeat: 2913 / 450

On to step 6:
450 goes into 2913 6 times with a remainder of 213.
The number 6 becomes the next digit in our result. 
Result so far: 1166.0
The remainder is 213 after subtracting 2700 from 2913.
Include the next digit (8) from the dividend after 213, then repeat: 2138 / 450

Let's proceed to step 7:
2138 divided by 450 is 4 with a remainder of 338.
The number 4 becomes the next digit in our result. 
Result so far: 11664.0
The remainder is 338 after subtracting 1800 from 2138.
Bring next digit (6) of the dividend behind the 338 and repeat the process: 3386 / 450

Let's proceed to step 8:
450 goes into 3386 7 times with a remainder of 236.
The next digit of our result is 7. 
Result so far: 116647.0
Subtracting 3150 from 3386 leaves us with 236.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2360, and continue the process.

Moving on to step 9:
450 can be fit into 2360 5 times, resulting in a remainder of 110.
Use 5 as the next digit of our solution. 
Result so far: 116647.5
Deduct 2250 from 2360 and we're left with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Going ahead to step 10:
When dividing 1100 by 450, we get 2 with a remainder of 200.
Use 2 as the next digit of our solution. 
Result so far: 116647.52
If we take 900 away from 1100, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Step 11:
450 can be fit into 2000 4 times, resulting in a remainder of 200.
The next digit of our result is 4. 
Result so far: 116647.524
Subtracting 1800 from 2000 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 12:
450 can be fit into 2000 4 times, resulting in a remainder of 200.
The next digit of our result is 4. 
Result so far: 116647.5244
The remainder is 200 after subtracting 1800 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

After the division, we end up with 116647.5244 and a remainder of 0.002.