We're dividing 71535729 by 23 
The aim is to understand the frequency of 23 in 71535729.

Advancing to step 1:
When dividing 7 by 23, we get 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Include the next digit (1) from the dividend after 7, then repeat: 71 / 23

Advancing to step 2:
23 goes into 71 3 times with a remainder of 2.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 69 from 71 leaves us with 2.
Append the next digit (5) from the dividend to 2 and continue with: 25 / 23

Step 3:
23 can be fit into 25 1 times, resulting in a remainder of 2.
The next digit of our result is 1. 
Result so far: 31.0
If we take 23 away from 25, we end up with 2.
Take the next digit (3) from the dividend and append it to 2, then repeat: 23 / 23

Moving on to step 4:
23 goes into 23 1 times with a remainder of 0.
The next digit of our result is 1. 
Result so far: 311.0
If we subtract 23 from 23, we get 0.
Grab the next digit (5) from the dividend, add it to 0, then carry on: 5 / 23

Let's proceed to step 5:
When dividing 5 by 23, we get 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 3110.0
Subtracting 0 from 5 leaves us with 5.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 23

Moving on to step 6:
The number 23 fits into 57 2 times, leaving a remainder of 11.
Use 2 as the next digit of our solution. 
Result so far: 31102.0
Deduct 46 from 57 and we're left with 11.
Bring next digit (2) of the dividend behind the 11 and repeat the process: 112 / 23

On to step 7:
The number 23 fits into 112 4 times, leaving a remainder of 20.
Record the quotient 4 as the next digit in the result. 
Result so far: 311024.0
The remainder is 20 after subtracting 92 from 112.
Bring next digit (9) of the dividend behind the 20 and repeat the process: 209 / 23

Moving on to step 8:
When dividing 209 by 23, we get 9 with a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 3110249.0
Subtracting 207 from 209 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 9:
When dividing 20 by 23, we get 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 3110249.0
Deduct 0 from 20 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 10:
When dividing 200 by 23, we get 8 with a remainder of 16.
The next digit of our result is 8. 
Result so far: 3110249.08
The remainder is 16 after subtracting 184 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Moving on to step 11:
23 goes into 160 6 times with a remainder of 22.
The number 6 becomes the next digit in our result. 
Result so far: 3110249.086
Deduct 138 from 160 and we're left 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.

Let's proceed to step 12:
220 divided by 23 is 9 with a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 3110249.0869
The remainder is 13 after subtracting 207 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 13:
23 can be fit into 130 5 times, resulting in a remainder of 15.
Write down 5 as next digit of the result. 
Result so far: 3110249.08695
If we subtract 115 from 130, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 14:
23 goes into 150 6 times with a remainder of 12.
Record the quotient 6 as the next digit in the result. 
Result so far: 3110249.086956
Deduct 138 from 150 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 15:
23 can be fit into 120 5 times, resulting in a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 3110249.0869565
Deduct 115 from 120 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

On to step 16:
23 goes into 50 2 times with a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 3110249.08695652
If we take 46 away from 50, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

After the division, we end up with 3110249.08695652 and a remainder of 4e-09.