We look at the division of 441909 by 23 
The aim is to understand the frequency of 23 in 441909.

Advancing to step 1:
If we divide 4 by 23, we get 0 and a remainder of 4.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 4 to get 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 23

Going ahead to step 2:
23 goes into 44 1 times with a remainder of 21.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtract 23 from 44 to get 21.
Take the next digit (1) from the dividend and append it to 21, then repeat: 211 / 23

On to step 3:
When dividing 211 by 23, we get 9 with a remainder of 4.
The next digit of our result is 9. 
Result so far: 19.0
Subtracting 207 from 211 leaves us with 4.
Include the next digit (9) from the dividend after 4, then repeat: 49 / 23

On to step 4:
The number 23 fits into 49 2 times, leaving a remainder of 3.
The next digit of our result is 2. 
Result so far: 192.0
Subtracting 46 from 49 leaves us with 3.
Include the next digit (0) from the dividend after 3, then repeat: 30 / 23

Let's proceed to step 5:
When dividing 30 by 23, we get 1 with a remainder of 7.
Put 1 as the next digit of the answer. 
Result so far: 1921.0
Deduct 23 from 30 and we're left with 7.
Bring next digit (9) of the dividend behind the 7 and repeat the process: 79 / 23

Let's proceed to step 6:
When dividing 79 by 23, we get 3 with a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 19213.0
If we take 69 away from 79, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 7:
If we divide 100 by 23, we get 4 and a remainder of 8.
The next digit of our result is 4. 
Result so far: 19213.4
If we subtract 92 from 100, we get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 8:
80 divided by 23 is 3 with a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 19213.43
The remainder is 11 after subtracting 69 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 9:
23 can be fit into 110 4 times, resulting in a remainder of 18.
Record the quotient 4 as the next digit in the result. 
Result so far: 19213.434
If we subtract 92 from 110, we get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 10:
If we divide 180 by 23, we get 7 and a remainder of 19.
The next digit of our result is 7. 
Result so far: 19213.4347
The remainder is 19 after subtracting 161 from 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 11:
23 can be fit into 190 8 times, resulting in a remainder of 6.
Use 8 as the next digit of our solution. 
Result so far: 19213.43478
Subtracting 184 from 190 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.

Step 12:
If we divide 60 by 23, we get 2 and a remainder of 14.
Put 2 as the next digit of the answer. 
Result so far: 19213.434782
Deduct 46 from 60 and we're left 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.

Step 13:
The number 23 fits into 140 6 times, leaving a remainder of 2.
Record the quotient 6 as the next digit in the result. 
Result so far: 19213.4347826
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.

On to step 14:
20 divided by 23 is 0 with a remainder of 20.
The next digit of our result is 0. 
Result so far: 19213.4347826
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.

The final outcome is 19213.4347826, with a leftover of 2e-08.