We divide 815275 by 43
The aim is to understand the frequency of 43 in 815275.

Advancing to step 1:
If we divide 8 by 43, we get 0 and a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 43

On to step 2:
81 divided by 43 is 1 with a remainder of 38.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 43 from 81 leaves us with 38.
Append the next digit (5) from the dividend to 38 and continue with: 385 / 43

Moving on to step 3:
43 goes into 385 8 times with a remainder of 41.
Write down 8 as next digit of the result. 
Result so far: 18.0
The remainder is 41 after subtracting 344 from 385.
Fetch the next digit (2) from the dividend, attach it to 41 and continue: 412 / 43

Let's proceed to step 4:
43 goes into 412 9 times with a remainder of 25.
The next digit of our result is 9. 
Result so far: 189.0
Subtract 387 from 412 to get 25.
Bring next digit (7) of the dividend behind the 25 and repeat the process: 257 / 43

Going ahead to step 5:
If we divide 257 by 43, we get 5 and a remainder of 42.
Use 5 as the next digit of our solution. 
Result so far: 1895.0
The remainder is 42 after subtracting 215 from 257.
Append the next digit (5) from the dividend to 42 and continue with: 425 / 43

Going ahead to step 6:
If we divide 425 by 43, we get 9 and a remainder of 38.
Record the quotient 9 as the next digit in the result. 
Result so far: 18959.0
If we subtract 387 from 425, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Moving on to step 7:
43 can be fit into 380 8 times, resulting in a remainder of 36.
The number 8 becomes the next digit in our result. 
Result so far: 18959.8
Subtracting 344 from 380 leaves us with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Advancing to step 8:
43 can be fit into 360 8 times, resulting in a remainder of 16.
Record the quotient 8 as the next digit in the result. 
Result so far: 18959.88
The remainder is 16 after subtracting 344 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

The final outcome is 18959.88, with a leftover of 0.016.