We're dividing 663192 by 43 
The aim is to understand the frequency of 43 in 663192.

Let's proceed to step 1:
The number 43 fits into 6 0 times, leaving a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (6) of the dividend behind the 6 and repeat the process: 66 / 43

Let's proceed to step 2:
43 goes into 66 1 times with a remainder of 23.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 43 from 66 to get 23.
Include the next digit (3) from the dividend after 23, then repeat: 233 / 43

Step 3:
When dividing 233 by 43, we get 5 with a remainder of 18.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Subtracting 215 from 233 leaves us with 18.
Grab the next digit (1) from the dividend, add it to 18, then carry on: 181 / 43

Moving on to step 4:
If we divide 181 by 43, we get 4 and a remainder of 9.
The number 4 becomes the next digit in our result. 
Result so far: 154.0
If we subtract 172 from 181, we get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 43

Step 5:
43 can be fit into 99 2 times, resulting in a remainder of 13.
Put 2 as the next digit of the answer. 
Result so far: 1542.0
If we subtract 86 from 99, we get 13.
Include the next digit (2) from the dividend after 13, then repeat: 132 / 43

Going ahead to step 6:
If we divide 132 by 43, we get 3 and a remainder of 3.
Record the quotient 3 as the next digit in the result. 
Result so far: 15423.0
If we subtract 129 from 132, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 7:
30 divided by 43 is 0 with a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 15423.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
When dividing 300 by 43, we get 6 with a remainder of 42.
The next digit of our result is 6. 
Result so far: 15423.06
If we take 258 away from 300, we end up with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 9:
The number 43 fits into 420 9 times, leaving a remainder of 33.
Use 9 as the next digit of our solution. 
Result so far: 15423.069
The remainder is 33 after subtracting 387 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Going ahead to step 10:
If we divide 330 by 43, we get 7 and a remainder of 29.
Use 7 as the next digit of our solution. 
Result so far: 15423.0697
The remainder is 29 after subtracting 301 from 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 11:
290 divided by 43 is 6 with a remainder of 32.
The number 6 becomes the next digit in our result. 
Result so far: 15423.06976
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.

On to step 12:
320 divided by 43 is 7 with a remainder of 19.
Write down 7 as next digit of the result. 
Result so far: 15423.069767
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.

Step 13:
43 goes into 190 4 times with a remainder of 18.
The number 4 becomes the next digit in our result. 
Result so far: 15423.0697674
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 14:
43 goes into 180 4 times with a remainder of 8.
Put 4 as the next digit of the answer. 
Result so far: 15423.06976744
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.

The final result is 15423.06976744 with a remainder of 8e-09.