We're dividing 820730 by 43 
The aim is to understand the frequency of 43 in 820730.

On to step 1:
8 divided by 43 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Grab the next digit (2) from the dividend, add it to 8, then carry on: 82 / 43

Moving on to step 2:
43 goes into 82 1 times with a remainder of 39.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 43 from 82 to get 39.
Grab the next digit (0) from the dividend, add it to 39, then carry on: 390 / 43

On to step 3:
43 can be fit into 390 9 times, resulting in a remainder of 3.
The next digit of our result is 9. 
Result so far: 19.0
If we take 387 away from 390, we end up with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 43

On to step 4:
When dividing 37 by 43, we get 0 with a remainder of 37.
The next digit of our result is 0. 
Result so far: 190.0
If we take 0 away from 37, we end up with 37.
Include the next digit (3) from the dividend after 37, then repeat: 373 / 43

Moving on to step 5:
If we divide 373 by 43, we get 8 and a remainder of 29.
Use 8 as the next digit of our solution. 
Result so far: 1908.0
The remainder is 29 after subtracting 344 from 373.
Fetch the next digit (0) from the dividend, attach it to 29 and continue: 290 / 43

Advancing to step 6:
The number 43 fits into 290 6 times, leaving a remainder of 32.
Record the quotient 6 as the next digit in the result. 
Result so far: 19086.0
If we subtract 258 from 290, we 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.

Step 7:
When dividing 320 by 43, we get 7 with a remainder of 19.
Use 7 as the next digit of our solution. 
Result so far: 19086.7
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.

Going ahead to step 8:
The number 43 fits into 190 4 times, leaving a remainder of 18.
The next digit of our result is 4. 
Result so far: 19086.74
Subtract 172 from 190 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
The number 43 fits into 180 4 times, leaving a remainder of 8.
Write down 4 as next digit of the result. 
Result so far: 19086.744
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 19086.744 and a remainder of 0.0008.