428179 ÷ 43 
The aim is to understand the frequency of 43 in 428179.

Step 1:
When dividing 4 by 43, we get 0 with a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Grab the next digit (2) from the dividend, add it to 4, then carry on: 42 / 43

On to step 2:
42 divided by 43 is 0 with a remainder of 42.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 42 after subtracting 0 from 42.
Fetch the next digit (8) from the dividend, attach it to 42 and continue: 428 / 43

Going ahead to step 3:
43 can be fit into 428 9 times, resulting in a remainder of 41.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 41 after subtracting 387 from 428.
Include the next digit (1) from the dividend after 41, then repeat: 411 / 43

Moving on to step 4:
When dividing 411 by 43, we get 9 with a remainder of 24.
Use 9 as the next digit of our solution. 
Result so far: 99.0
Subtracting 387 from 411 leaves us with 24.
Fetch the next digit (7) from the dividend, attach it to 24 and continue: 247 / 43

On to step 5:
43 can be fit into 247 5 times, resulting in a remainder of 32.
Write down 5 as next digit of the result. 
Result so far: 995.0
The remainder is 32 after subtracting 215 from 247.
Fetch the next digit (9) from the dividend, attach it to 32 and continue: 329 / 43

Advancing to step 6:
The number 43 fits into 329 7 times, leaving a remainder of 28.
The next digit of our result is 7. 
Result so far: 9957.0
If we take 301 away from 329, we end up with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 7:
When dividing 280 by 43, we get 6 with a remainder of 22.
The next digit of our result is 6. 
Result so far: 9957.6
If we take 258 away from 280, we end up with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

On to step 8:
43 can be fit into 220 5 times, resulting in a remainder of 5.
Use 5 as the next digit of our solution. 
Result so far: 9957.65
Subtract 215 from 220 to get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 9:
43 can be fit into 50 1 times, resulting in a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 9957.651
Subtracting 43 from 50 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Moving on to step 10:
The number 43 fits into 70 1 times, leaving a remainder of 27.
Record the quotient 1 as the next digit in the result. 
Result so far: 9957.6511
If we subtract 43 from 70, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

The final result is 9957.6511 with a remainder of 0.00027.