We look at the division of 817715 by 23 
The aim is to understand the frequency of 23 in 817715.

On to step 1:
23 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 23

Advancing to step 2:
23 can be fit into 81 3 times, resulting in a remainder of 12.
The next digit of our result is 3. 
Result so far: 3.0
If we take 69 away from 81, we end up with 12.
Include the next digit (7) from the dividend after 12, then repeat: 127 / 23

Going ahead to step 3:
127 divided by 23 is 5 with a remainder of 12.
The next digit of our result is 5. 
Result so far: 35.0
Deduct 115 from 127 and we're left with 12.
Bring next digit (7) of the dividend behind the 12 and repeat the process: 127 / 23

Going ahead to step 4:
The number 23 fits into 127 5 times, leaving a remainder of 12.
Write down 5 as next digit of the result. 
Result so far: 355.0
If we take 115 away from 127, we end up with 12.
Grab the next digit (1) from the dividend, add it to 12, then carry on: 121 / 23

On to step 5:
The number 23 fits into 121 5 times, leaving a remainder of 6.
Put 5 as the next digit of the answer. 
Result so far: 3555.0
If we subtract 115 from 121, we get 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 23

Let's proceed to step 6:
If we divide 65 by 23, we get 2 and a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 35552.0
The remainder is 19 after subtracting 46 from 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 7:
If we divide 190 by 23, we get 8 and a remainder of 6.
The number 8 becomes the next digit in our result. 
Result so far: 35552.8
Subtract 184 from 190 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 8:
The number 23 fits into 60 2 times, leaving a remainder of 14.
Record the quotient 2 as the next digit in the result. 
Result so far: 35552.82
If we take 46 away from 60, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

On to step 9:
140 divided by 23 is 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 35552.826
If we take 138 away from 140, we end up 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.

Moving on to step 10:
23 can be fit into 20 0 times, resulting in a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 35552.826
Subtract 0 from 20 to get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Advancing to step 11:
23 can be fit into 200 8 times, resulting in a remainder of 16.
Use 8 as the next digit of our solution. 
Result so far: 35552.82608
Subtracting 184 from 200 leaves us with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Going ahead to step 12:
23 goes into 160 6 times with a remainder of 22.
Write down 6 as next digit of the result. 
Result so far: 35552.826086
If we subtract 138 from 160, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 13:
When dividing 220 by 23, we get 9 with a remainder of 13.
Use 9 as the next digit of our solution. 
Result so far: 35552.8260869
Subtract 207 from 220 to get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 14:
The number 23 fits into 130 5 times, leaving a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 35552.82608695
If we take 115 away from 130, we end up 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.

The final outcome is 35552.82608695, with a leftover of 1.5e-08.