428992 divided by 43 
The aim is to understand the frequency of 43 in 428992.

On to 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.
Take the next digit (2) from the dividend and append it to 4, then repeat: 42 / 43

Moving on to step 2:
The number 43 fits into 42 0 times, leaving a remainder of 42.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 42 and we're left with 42.
Include the next digit (8) from the dividend after 42, then repeat: 428 / 43

Step 3:
The number 43 fits into 428 9 times, leaving a remainder of 41.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 387 from 428 to get 41.
Fetch the next digit (9) from the dividend, attach it to 41 and continue: 419 / 43

On to step 4:
The number 43 fits into 419 9 times, leaving a remainder of 32.
Write down 9 as next digit of the result. 
Result so far: 99.0
The remainder is 32 after subtracting 387 from 419.
Fetch the next digit (9) from the dividend, attach it to 32 and continue: 329 / 43

Moving on to step 5:
The number 43 fits into 329 7 times, leaving a remainder of 28.
Use 7 as the next digit of our solution. 
Result so far: 997.0
Subtracting 301 from 329 leaves us with 28.
Take the next digit (2) from the dividend and append it to 28, then repeat: 282 / 43

Going ahead to step 6:
When dividing 282 by 43, we get 6 with a remainder of 24.
Use 6 as the next digit of our solution. 
Result so far: 9976.0
If we subtract 258 from 282, we get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

On to step 7:
240 divided by 43 is 5 with a remainder of 25.
Record the quotient 5 as the next digit in the result. 
Result so far: 9976.5
If we take 215 away from 240, we end up with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Going ahead to step 8:
When dividing 250 by 43, we get 5 with a remainder of 35.
Put 5 as the next digit of the answer. 
Result so far: 9976.55
If we take 215 away from 250, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

The quotient of the division is 9976.55, and the remainder is 0.035.