We look at the division of 725318 by 23 
The aim is to understand the frequency of 23 in 725318.

Advancing to step 1:
23 can be fit into 7 0 times, resulting in 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.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 23

Advancing to step 2:
When dividing 72 by 23, we get 3 with a remainder of 3.
The next digit of our result is 3. 
Result so far: 3.0
Deduct 69 from 72 and we're left with 3.
Take the next digit (5) from the dividend and append it to 3, then repeat: 35 / 23

Advancing to step 3:
23 can be fit into 35 1 times, resulting in a remainder of 12.
The number 1 becomes the next digit in our result. 
Result so far: 31.0
The remainder is 12 after subtracting 23 from 35.
Include the next digit (3) from the dividend after 12, then repeat: 123 / 23

Going ahead to step 4:
When dividing 123 by 23, we get 5 with a remainder of 8.
Put 5 as the next digit of the answer. 
Result so far: 315.0
Subtract 115 from 123 to get 8.
Bring next digit (1) of the dividend behind the 8 and repeat the process: 81 / 23

Going ahead to step 5:
81 divided by 23 is 3 with a remainder of 12.
Write down 3 as next digit of the result. 
Result so far: 3153.0
Deduct 69 from 81 and we're left with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 23

Moving on to step 6:
23 can be fit into 128 5 times, resulting in a remainder of 13.
Use 5 as the next digit of our solution. 
Result so far: 31535.0
If we take 115 away from 128, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 7:
23 can be fit into 130 5 times, resulting in a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 31535.5
Subtract 115 from 130 to 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.

Going ahead to step 8:
When dividing 150 by 23, we get 6 with a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 31535.56
Subtract 138 from 150 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 9:
When dividing 120 by 23, we get 5 with a remainder of 5.
The next digit of our result is 5. 
Result so far: 31535.565
The remainder is 5 after subtracting 115 from 120.
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 10:
When dividing 50 by 23, we get 2 with a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 31535.5652
Subtracting 46 from 50 leaves us 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.

Step 11:
23 can be fit into 40 1 times, resulting in a remainder of 17.
The next digit of our result is 1. 
Result so far: 31535.56521
Subtracting 23 from 40 leaves us 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.

Step 12:
When dividing 170 by 23, we get 7 with a remainder of 9.
Put 7 as the next digit of the answer. 
Result so far: 31535.565217
Subtracting 161 from 170 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 13:
90 divided by 23 is 3 with a remainder of 21.
Write down 3 as next digit of the result. 
Result so far: 31535.5652173
If we take 69 away from 90, we end up 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.

Moving on to step 14:
210 divided by 23 is 9 with a remainder of 3.
The next digit of our result is 9. 
Result so far: 31535.56521739
If we take 207 away from 210, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 31535.56521739, with a leftover of 3e-09.