We're dividing 646890 by 24 
The aim is to understand the frequency of 24 in 646890.

Let's proceed to step 1:
24 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 24

Step 2:
The number 24 fits into 64 2 times, leaving a remainder of 16.
The next digit of our result is 2. 
Result so far: 2.0
Subtracting 48 from 64 leaves us with 16.
Append the next digit (6) from the dividend to 16 and continue with: 166 / 24

Step 3:
When dividing 166 by 24, we get 6 with a remainder of 22.
Record the quotient 6 as the next digit in the result. 
Result so far: 26.0
Deduct 144 from 166 and we're left with 22.
Fetch the next digit (8) from the dividend, attach it to 22 and continue: 228 / 24

Step 4:
The number 24 fits into 228 9 times, leaving a remainder of 12.
Record the quotient 9 as the next digit in the result. 
Result so far: 269.0
The remainder is 12 after subtracting 216 from 228.
Take the next digit (9) from the dividend and append it to 12, then repeat: 129 / 24

Let's proceed to step 5:
The number 24 fits into 129 5 times, leaving a remainder of 9.
The number 5 becomes the next digit in our result. 
Result so far: 2695.0
Deduct 120 from 129 and we're left with 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 24

Step 6:
The number 24 fits into 90 3 times, leaving a remainder of 18.
Put 3 as the next digit of the answer. 
Result so far: 26953.0
The remainder is 18 after subtracting 72 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 7:
24 can be fit into 180 7 times, resulting in a remainder of 12.
The next digit of our result is 7. 
Result so far: 26953.7
Deduct 168 from 180 and we're left 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.

On to step 8:
When dividing 120 by 24, we get 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 26953.75
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.

Step 9:
24 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 26953.75
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.

On to step 10:
The number 24 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 26953.75
If we subtract 0 from 0, 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.

The quotient of the division is 26953.75, and the remainder is 0.0.