We divide 21003 by 24
The aim is to understand the frequency of 24 in 21003.

Moving on to step 1:
If we divide 2 by 24, we get 0 and a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 24

Advancing to step 2:
If we divide 21 by 24, we get 0 and a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Take the next digit (0) from the dividend and append it to 21, then repeat: 210 / 24

Let's proceed to step 3:
The number 24 fits into 210 8 times, leaving a remainder of 18.
Write down 8 as next digit of the result. 
Result so far: 8.0
Subtract 192 from 210 to get 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 24

Advancing to step 4:
If we divide 180 by 24, we get 7 and a remainder of 12.
Put 7 as the next digit of the answer. 
Result so far: 87.0
If we subtract 168 from 180, we get 12.
Append the next digit (3) from the dividend to 12 and continue with: 123 / 24

Let's proceed to step 5:
123 divided by 24 is 5 with a remainder of 3.
Use 5 as the next digit of our solution. 
Result so far: 875.0
Subtracting 120 from 123 leaves us 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.

Moving on to step 6:
When dividing 30 by 24, we get 1 with a remainder of 6.
Put 1 as the next digit of the answer. 
Result so far: 875.1
Subtracting 24 from 30 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.

Moving on to step 7:
If we divide 60 by 24, we get 2 and a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 875.12
The remainder is 12 after subtracting 48 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Step 8:
24 goes into 120 5 times with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 875.125
Subtracting 120 from 120 leaves us 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.

Let's proceed to step 9:
0 divided by 24 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 875.125
Deduct 0 from 0 and we're left 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.

Let's proceed to step 10:
If we divide 0 by 24, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 875.125
Deduct 0 from 0 and we're left 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.

The final result is 875.125 with a remainder of 0.0.