421419 divided by 23 
The aim is to understand the frequency of 23 in 421419.

Going ahead to step 1:
23 goes into 4 0 times with a remainder of 4.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Fetch the next digit (2) from the dividend, attach it to 4 and continue: 42 / 23

Going ahead to step 2:
23 goes into 42 1 times with a remainder of 19.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 23 from 42 and we're left with 19.
Fetch the next digit (1) from the dividend, attach it to 19 and continue: 191 / 23

Advancing to step 3:
If we divide 191 by 23, we get 8 and a remainder of 7.
The next digit of our result is 8. 
Result so far: 18.0
Subtract 184 from 191 to get 7.
Fetch the next digit (4) from the dividend, attach it to 7 and continue: 74 / 23

Going ahead to step 4:
The number 23 fits into 74 3 times, leaving a remainder of 5.
The next digit of our result is 3. 
Result so far: 183.0
If we subtract 69 from 74, we get 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 23

Going ahead to step 5:
23 can be fit into 51 2 times, resulting in a remainder of 5.
Use 2 as the next digit of our solution. 
Result so far: 1832.0
If we subtract 46 from 51, we get 5.
Append the next digit (9) from the dividend to 5 and continue with: 59 / 23

On to step 6:
The number 23 fits into 59 2 times, leaving a remainder of 13.
Use 2 as the next digit of our solution. 
Result so far: 18322.0
The remainder is 13 after subtracting 46 from 59.
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.
Record the quotient 5 as the next digit in the result. 
Result so far: 18322.5
Subtracting 115 from 130 leaves us 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.

Let's proceed to step 8:
When dividing 150 by 23, we get 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 18322.56
The remainder is 12 after subtracting 138 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 9:
23 goes into 120 5 times with a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 18322.565
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.

Let's proceed to step 10:
23 goes into 50 2 times with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 18322.5652
If we take 46 away from 50, we end up 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.

Moving on to step 11:
23 goes into 40 1 times with a remainder of 17.
The number 1 becomes the next digit in our result. 
Result so far: 18322.56521
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.

On to step 12:
170 divided by 23 is 7 with a remainder of 9.
Write down 7 as next digit of the result. 
Result so far: 18322.565217
If we subtract 161 from 170, we get 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:
When dividing 90 by 23, we get 3 with a remainder of 21.
Use 3 as the next digit of our solution. 
Result so far: 18322.5652173
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.

On to step 14:
When dividing 210 by 23, we get 9 with a remainder of 3.
The next digit of our result is 9. 
Result so far: 18322.56521739
The remainder is 3 after subtracting 207 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The quotient of the division is 18322.56521739, and the remainder is 3e-09.