We're dividing 723 by 43 
The aim is to understand the frequency of 43 in 723.

Moving on to step 1:
If we divide 7 by 43, we get 0 and a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (2) from the dividend, attach it to 7 and continue: 72 / 43

Moving on to step 2:
When dividing 72 by 43, we get 1 with a remainder of 29.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 43 from 72, we get 29.
Append the next digit (3) from the dividend to 29 and continue with: 293 / 43

Going ahead to step 3:
When dividing 293 by 43, we get 6 with a remainder of 35.
Use 6 as the next digit of our solution. 
Result so far: 16.0
Subtracting 258 from 293 leaves us 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.

Moving on to step 4:
When dividing 350 by 43, we get 8 with a remainder of 6.
The next digit of our result is 8. 
Result so far: 16.8
Subtracting 344 from 350 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 5:
43 goes into 60 1 times with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 16.81
Deduct 43 from 60 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

On to step 6:
When dividing 170 by 43, we get 3 with a remainder of 41.
The next digit of our result is 3. 
Result so far: 16.813
Subtracting 129 from 170 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

Moving on to step 7:
The number 43 fits into 410 9 times, leaving a remainder of 23.
The next digit of our result is 9. 
Result so far: 16.8139
If we take 387 away from 410, we end up with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Step 8:
If we divide 230 by 43, we get 5 and a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 16.81395
Deduct 215 from 230 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Moving on to step 9:
When dividing 150 by 43, we get 3 with a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 16.813953
Deduct 129 from 150 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 10:
If we divide 210 by 43, we get 4 and a remainder of 38.
Record the quotient 4 as the next digit in the result. 
Result so far: 16.8139534
If we take 172 away from 210, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 11:
43 can be fit into 380 8 times, resulting in a remainder of 36.
The next digit of our result is 8. 
Result so far: 16.81395348
Deduct 344 from 380 and we're left with 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

After the division, we end up with 16.81395348 and a remainder of 3.6e-08.