We look at the division of 57837385 by 450 
The aim is to understand the frequency of 450 in 57837385.

On to step 1:
450 can be fit into 5 0 times, resulting in a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (7) from the dividend, attach it to 5 and continue: 57 / 450

Going ahead to step 2:
If we divide 57 by 450, we get 0 and a remainder of 57.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 57, we get 57.
Append the next digit (8) from the dividend to 57 and continue with: 578 / 450

Advancing to step 3:
If we divide 578 by 450, we get 1 and a remainder of 128.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 450 away from 578, we end up with 128.
Take the next digit (3) from the dividend and append it to 128, then repeat: 1283 / 450

Step 4:
If we divide 1283 by 450, we get 2 and a remainder of 383.
Write down 2 as next digit of the result. 
Result so far: 12.0
Subtract 900 from 1283 to get 383.
Bring next digit (7) of the dividend behind the 383 and repeat the process: 3837 / 450

Advancing to step 5:
When dividing 3837 by 450, we get 8 with a remainder of 237.
Put 8 as the next digit of the answer. 
Result so far: 128.0
Deduct 3600 from 3837 and we're left with 237.
Append the next digit (3) from the dividend to 237 and continue with: 2373 / 450

On to step 6:
2373 divided by 450 is 5 with a remainder of 123.
Write down 5 as next digit of the result. 
Result so far: 1285.0
Subtract 2250 from 2373 to get 123.
Fetch the next digit (8) from the dividend, attach it to 123 and continue: 1238 / 450

Moving on to step 7:
450 goes into 1238 2 times with a remainder of 338.
Use 2 as the next digit of our solution. 
Result so far: 12852.0
If we subtract 900 from 1238, we get 338.
Fetch the next digit (5) from the dividend, attach it to 338 and continue: 3385 / 450

On to step 8:
450 goes into 3385 7 times with a remainder of 235.
The next digit of our result is 7. 
Result so far: 128527.0
If we subtract 3150 from 3385, we get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Advancing to step 9:
The number 450 fits into 2350 5 times, leaving a remainder of 100.
Write down 5 as next digit of the result. 
Result so far: 128527.5
If we take 2250 away from 2350, we end up with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Going ahead to step 10:
1000 divided by 450 is 2 with a remainder of 100.
Use 2 as the next digit of our solution. 
Result so far: 128527.52
If we subtract 900 from 1000, we get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Moving on to step 11:
450 goes into 1000 2 times with a remainder of 100.
The next digit of our result is 2. 
Result so far: 128527.522
Deduct 900 from 1000 and we're left with 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Our division results in 128527.522 with a remaining 0.01.