We look at the division of 430366 by 23 
The aim is to understand the frequency of 23 in 430366.

Advancing to step 1:
If we divide 4 by 23, we get 0 and a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Append the next digit (3) from the dividend to 4 and continue with: 43 / 23

Going ahead to step 2:
The number 23 fits into 43 1 times, leaving a remainder of 20.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 20 after subtracting 23 from 43.
Include the next digit (0) from the dividend after 20, then repeat: 200 / 23

Going ahead to step 3:
23 can be fit into 200 8 times, resulting in a remainder of 16.
The number 8 becomes the next digit in our result. 
Result so far: 18.0
Subtracting 184 from 200 leaves us with 16.
Grab the next digit (3) from the dividend, add it to 16, then carry on: 163 / 23

Moving on to step 4:
23 can be fit into 163 7 times, resulting in a remainder of 2.
Put 7 as the next digit of the answer. 
Result so far: 187.0
The remainder is 2 after subtracting 161 from 163.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 23

Going ahead to step 5:
The number 23 fits into 26 1 times, leaving a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 1871.0
If we take 23 away from 26, we end up with 3.
Take the next digit (6) from the dividend and append it to 3, then repeat: 36 / 23

On to step 6:
The number 23 fits into 36 1 times, leaving a remainder of 13.
The next digit of our result is 1. 
Result so far: 18711.0
Subtract 23 from 36 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.

On to step 7:
23 can be fit into 130 5 times, resulting in a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 18711.5
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 8:
23 can be fit into 150 6 times, resulting in a remainder of 12.
Put 6 as the next digit of the answer. 
Result so far: 18711.56
If we subtract 138 from 150, we 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.

Advancing to step 9:
120 divided by 23 is 5 with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 18711.565
If we subtract 115 from 120, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 10:
23 goes into 50 2 times with a remainder of 4.
Record the quotient 2 as the next digit in the result. 
Result so far: 18711.5652
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.

On to step 11:
40 divided by 23 is 1 with a remainder of 17.
Record the quotient 1 as the next digit in the result. 
Result so far: 18711.56521
If we subtract 23 from 40, we get 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 12:
23 goes into 170 7 times with a remainder of 9.
Record the quotient 7 as the next digit in the result. 
Result so far: 18711.565217
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.

On to step 13:
23 can be fit into 90 3 times, resulting in a remainder of 21.
The number 3 becomes the next digit in our result. 
Result so far: 18711.5652173
Deduct 69 from 90 and we're left 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.

Let's proceed to step 14:
The number 23 fits into 210 9 times, leaving a remainder of 3.
The next digit of our result is 9. 
Result so far: 18711.56521739
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 18711.56521739, with a leftover of 3e-09.