Let's divide 72531185 by 804
The aim is to understand the frequency of 804 in 72531185.

Advancing to step 1:
If we divide 7 by 804, we get 0 and a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Grab the next digit (2) from the dividend, add it to 7, then carry on: 72 / 804

Moving on to step 2:
804 goes into 72 0 times with a remainder of 72.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 72, we end up with 72.
Append the next digit (5) from the dividend to 72 and continue with: 725 / 804

Going ahead to step 3:
804 can be fit into 725 0 times, resulting in a remainder of 725.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 725 leaves us with 725.
Grab the next digit (3) from the dividend, add it to 725, then carry on: 7253 / 804

On to step 4:
The number 804 fits into 7253 9 times, leaving a remainder of 17.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 7236 from 7253 and we're left with 17.
Append the next digit (1) from the dividend to 17 and continue with: 171 / 804

On to step 5:
804 can be fit into 171 0 times, resulting in a remainder of 171.
Use 0 as the next digit of our solution. 
Result so far: 90.0
The remainder is 171 after subtracting 0 from 171.
Bring next digit (1) of the dividend behind the 171 and repeat the process: 1711 / 804

Moving on to step 6:
If we divide 1711 by 804, we get 2 and a remainder of 103.
Record the quotient 2 as the next digit in the result. 
Result so far: 902.0
Deduct 1608 from 1711 and we're left with 103.
Append the next digit (8) from the dividend to 103 and continue with: 1038 / 804

Moving on to step 7:
When dividing 1038 by 804, we get 1 with a remainder of 234.
The number 1 becomes the next digit in our result. 
Result so far: 9021.0
Subtracting 804 from 1038 leaves us with 234.
Grab the next digit (5) from the dividend, add it to 234, then carry on: 2345 / 804

Moving on to step 8:
804 goes into 2345 2 times with a remainder of 737.
Write down 2 as next digit of the result. 
Result so far: 90212.0
Subtract 1608 from 2345 to get 737.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7370, and continue the process.

Moving on to step 9:
If we divide 7370 by 804, we get 9 and a remainder of 134.
The next digit of our result is 9. 
Result so far: 90212.9
The remainder is 134 after subtracting 7236 from 7370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

On to step 10:
The number 804 fits into 1340 1 times, leaving a remainder of 536.
The next digit of our result is 1. 
Result so far: 90212.91
If we take 804 away from 1340, we end up with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

On to step 11:
5360 divided by 804 is 6 with a remainder of 536.
Record the quotient 6 as the next digit in the result. 
Result so far: 90212.916
If we take 4824 away from 5360, we end up with 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

Advancing to step 12:
804 can be fit into 5360 6 times, resulting in a remainder of 536.
Record the quotient 6 as the next digit in the result. 
Result so far: 90212.9166
If we subtract 4824 from 5360, we get 536.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5360, and continue the process.

The final outcome is 90212.9166, with a leftover of 0.00536.