Let's divide 21464666 by 823
The aim is to understand the frequency of 823 in 21464666.

Advancing to step 1:
823 can be fit into 2 0 times, resulting in a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 823

Let's proceed to step 2:
823 goes into 21 0 times with a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 21, we end up with 21.
Append the next digit (4) from the dividend to 21 and continue with: 214 / 823

Advancing to step 3:
214 divided by 823 is 0 with a remainder of 214.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 214 to get 214.
Include the next digit (6) from the dividend after 214, then repeat: 2146 / 823

Advancing to step 4:
823 can be fit into 2146 2 times, resulting in a remainder of 500.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 500 after subtracting 1646 from 2146.
Fetch the next digit (4) from the dividend, attach it to 500 and continue: 5004 / 823

Let's proceed to step 5:
If we divide 5004 by 823, we get 6 and a remainder of 66.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
If we take 4938 away from 5004, we end up with 66.
Fetch the next digit (6) from the dividend, attach it to 66 and continue: 666 / 823

Step 6:
The number 823 fits into 666 0 times, leaving a remainder of 666.
Record the quotient 0 as the next digit in the result. 
Result so far: 260.0
If we take 0 away from 666, we end up with 666.
Grab the next digit (6) from the dividend, add it to 666, then carry on: 6666 / 823

On to step 7:
6666 divided by 823 is 8 with a remainder of 82.
The next digit of our result is 8. 
Result so far: 2608.0
If we take 6584 away from 6666, we end up with 82.
Fetch the next digit (6) from the dividend, attach it to 82 and continue: 826 / 823

Moving on to step 8:
823 goes into 826 1 times with a remainder of 3.
Use 1 as the next digit of our solution. 
Result so far: 26081.0
If we take 823 away from 826, 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.

On to step 9:
823 can be fit into 30 0 times, resulting in a remainder of 30.
Write down 0 as next digit of the result. 
Result so far: 26081.0
The remainder is 30 after subtracting 0 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
823 can be fit into 300 0 times, resulting in a remainder of 300.
The next digit of our result is 0. 
Result so far: 26081.0
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

After the division, we end up with 26081.0 and a remainder of 0.3.