We're dividing 852550 by 43 
The aim is to understand the frequency of 43 in 852550.

Advancing to step 1:
When dividing 8 by 43, we get 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Bring next digit (5) of the dividend behind the 8 and repeat the process: 85 / 43

On to step 2:
43 can be fit into 85 1 times, resulting in a remainder of 42.
Write down 1 as next digit of the result. 
Result so far: 1.0
The remainder is 42 after subtracting 43 from 85.
Bring next digit (2) of the dividend behind the 42 and repeat the process: 422 / 43

On to step 3:
43 can be fit into 422 9 times, resulting in a remainder of 35.
Record the quotient 9 as the next digit in the result. 
Result so far: 19.0
If we subtract 387 from 422, we get 35.
Grab the next digit (5) from the dividend, add it to 35, then carry on: 355 / 43

On to step 4:
When dividing 355 by 43, we get 8 with a remainder of 11.
The next digit of our result is 8. 
Result so far: 198.0
If we take 344 away from 355, we end up with 11.
Fetch the next digit (5) from the dividend, attach it to 11 and continue: 115 / 43

Step 5:
43 goes into 115 2 times with a remainder of 29.
Write down 2 as next digit of the result. 
Result so far: 1982.0
Deduct 86 from 115 and we're left with 29.
Take the next digit (0) from the dividend and append it to 29, then repeat: 290 / 43

Let's proceed to step 6:
When dividing 290 by 43, we get 6 with a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 19826.0
Subtract 258 from 290 to 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.

Moving on to step 7:
43 can be fit into 320 7 times, resulting in a remainder of 19.
The number 7 becomes the next digit in our result. 
Result so far: 19826.7
If we subtract 301 from 320, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Moving on to step 8:
When dividing 190 by 43, we get 4 with a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 19826.74
If we take 172 away from 190, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 9:
43 can be fit into 180 4 times, resulting in a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 19826.744
Subtracting 172 from 180 leaves us 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.

After the division, we end up with 19826.744 and a remainder of 0.0008.