We look at the division of 628550 by 43 
The aim is to understand the frequency of 43 in 628550.

On to step 1:
If we divide 6 by 43, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Bring next digit (2) of the dividend behind the 6 and repeat the process: 62 / 43

Advancing to step 2:
43 can be fit into 62 1 times, resulting in a remainder of 19.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 43 from 62, we get 19.
Append the next digit (8) from the dividend to 19 and continue with: 198 / 43

Going ahead to step 3:
If we divide 198 by 43, we get 4 and a remainder of 26.
Write down 4 as next digit of the result. 
Result so far: 14.0
If we subtract 172 from 198, we get 26.
Grab the next digit (5) from the dividend, add it to 26, then carry on: 265 / 43

Moving on to step 4:
43 can be fit into 265 6 times, resulting in a remainder of 7.
The number 6 becomes the next digit in our result. 
Result so far: 146.0
The remainder is 7 after subtracting 258 from 265.
Include the next digit (5) from the dividend after 7, then repeat: 75 / 43

Advancing to step 5:
When dividing 75 by 43, we get 1 with a remainder of 32.
Write down 1 as next digit of the result. 
Result so far: 1461.0
The remainder is 32 after subtracting 43 from 75.
Take the next digit (0) from the dividend and append it to 32, then repeat: 320 / 43

Step 6:
320 divided by 43 is 7 with a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 14617.0
Subtract 301 from 320 to 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.

On to step 7:
The number 43 fits into 190 4 times, leaving a remainder of 18.
The next digit of our result is 4. 
Result so far: 14617.4
If we subtract 172 from 190, we 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.

Going ahead to step 8:
The number 43 fits into 180 4 times, leaving a remainder of 8.
Use 4 as the next digit of our solution. 
Result so far: 14617.44
Subtract 172 from 180 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 14617.44, with a leftover of 0.008.