We look at the division of 604904 by 23 
The aim is to understand the frequency of 23 in 604904.

Advancing to step 1:
When dividing 6 by 23, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 23

Step 2:
23 goes into 60 2 times with a remainder of 14.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 14 after subtracting 46 from 60.
Take the next digit (4) from the dividend and append it to 14, then repeat: 144 / 23

Moving on to step 3:
23 goes into 144 6 times with a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
Subtract 138 from 144 to get 6.
Fetch the next digit (9) from the dividend, attach it to 6 and continue: 69 / 23

Moving on to step 4:
23 goes into 69 3 times with a remainder of 0.
The next digit of our result is 3. 
Result so far: 263.0
Subtract 69 from 69 to get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 23

Going ahead to step 5:
23 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 2630.0
Subtracting 0 from 0 leaves us with 0.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 23

Advancing to step 6:
23 can be fit into 4 0 times, resulting in a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 26300.0
If we subtract 0 from 4, we get 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 7:
When dividing 40 by 23, we get 1 with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 26300.1
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.

Advancing to step 8:
The number 23 fits into 170 7 times, leaving a remainder of 9.
The next digit of our result is 7. 
Result so far: 26300.17
The remainder is 9 after subtracting 161 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Let's proceed to step 9:
The number 23 fits into 90 3 times, leaving a remainder of 21.
Record the quotient 3 as the next digit in the result. 
Result so far: 26300.173
The remainder is 21 after subtracting 69 from 90.
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 10:
210 divided by 23 is 9 with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 26300.1739
If we subtract 207 from 210, 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.

Advancing to step 11:
If we divide 30 by 23, we get 1 and a remainder of 7.
Use 1 as the next digit of our solution. 
Result so far: 26300.17391
If we take 23 away from 30, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

Advancing to step 12:
23 goes into 70 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 26300.173913
Deduct 69 from 70 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 13:
If we divide 10 by 23, we get 0 and a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 26300.173913
Subtract 0 from 10 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 14:
The number 23 fits into 100 4 times, leaving a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 26300.17391304
If we take 92 away from 100, we end up 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.

Our division results in 26300.17391304 with a remaining 8e-09.