24443 ÷ 21 
The aim is to understand the frequency of 21 in 24443.

Let's proceed to step 1:
21 can be fit into 2 0 times, resulting in a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 21

Going ahead to step 2:
The number 21 fits into 24 1 times, leaving a remainder of 3.
The next digit of our result is 1. 
Result so far: 1.0
Subtracting 21 from 24 leaves us with 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 21

Going ahead to step 3:
If we divide 34 by 21, we get 1 and a remainder of 13.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 13 after subtracting 21 from 34.
Grab the next digit (4) from the dividend, add it to 13, then carry on: 134 / 21

Moving on to step 4:
21 goes into 134 6 times with a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 116.0
If we take 126 away from 134, we end up with 8.
Grab the next digit (3) from the dividend, add it to 8, then carry on: 83 / 21

Let's proceed to step 5:
21 goes into 83 3 times with a remainder of 20.
Put 3 as the next digit of the answer. 
Result so far: 1163.0
If we subtract 63 from 83, we 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.

Advancing to step 6:
When dividing 200 by 21, we get 9 with a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 1163.9
Deduct 189 from 200 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 7:
If we divide 110 by 21, we get 5 and a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 1163.95
Deduct 105 from 110 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 8:
When dividing 50 by 21, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 1163.952
Subtract 42 from 50 to 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 9:
21 goes into 80 3 times with a remainder of 17.
Record the quotient 3 as the next digit in the result. 
Result so far: 1163.9523
Subtract 63 from 80 to 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 10:
21 goes into 170 8 times with a remainder of 2.
The next digit of our result is 8. 
Result so far: 1163.95238
If we subtract 168 from 170, we get 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 11:
20 divided by 21 is 0 with a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 1163.95238
If we subtract 0 from 20, we 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.

Going ahead to step 12:
21 can be fit into 200 9 times, resulting in a remainder of 11.
Use 9 as the next digit of our solution. 
Result so far: 1163.9523809
Deduct 189 from 200 and we're left with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Advancing to step 13:
The number 21 fits into 110 5 times, leaving a remainder of 5.
Write down 5 as next digit of the result. 
Result so far: 1163.95238095
Subtracting 105 from 110 leaves us with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 1163.95238095, and the remainder is 5e-09.