We're dividing 645813 by 24 
The aim is to understand the frequency of 24 in 645813.

Going ahead to step 1:
6 divided by 24 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 24

Going ahead to step 2:
24 can be fit into 64 2 times, resulting in a remainder of 16.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Subtracting 48 from 64 leaves us with 16.
Append the next digit (5) from the dividend to 16 and continue with: 165 / 24

On to step 3:
24 goes into 165 6 times with a remainder of 21.
Put 6 as the next digit of the answer. 
Result so far: 26.0
Subtract 144 from 165 to get 21.
Bring next digit (8) of the dividend behind the 21 and repeat the process: 218 / 24

Advancing to step 4:
218 divided by 24 is 9 with a remainder of 2.
Write down 9 as next digit of the result. 
Result so far: 269.0
Subtract 216 from 218 to get 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 24

Going ahead to step 5:
24 goes into 21 0 times with a remainder of 21.
The number 0 becomes the next digit in our result. 
Result so far: 2690.0
The remainder is 21 after subtracting 0 from 21.
Take the next digit (3) from the dividend and append it to 21, then repeat: 213 / 24

Moving on to step 6:
If we divide 213 by 24, we get 8 and a remainder of 21.
The number 8 becomes the next digit in our result. 
Result so far: 26908.0
If we subtract 192 from 213, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Step 7:
When dividing 210 by 24, we get 8 with a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 26908.8
If we subtract 192 from 210, 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.

Step 8:
24 can be fit into 180 7 times, resulting in a remainder of 12.
Record the quotient 7 as the next digit in the result. 
Result so far: 26908.87
If we take 168 away from 180, we end up with 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:
If we divide 120 by 24, we get 5 and a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 26908.875
If we subtract 120 from 120, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 10:
The number 24 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 26908.875
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 11:
The number 24 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 26908.875
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 26908.875 with a balance of 0.0.