Let's divide 644823 by 33
The aim is to understand the frequency of 33 in 644823.

Advancing to step 1:
The number 33 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
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 / 33

Step 2:
33 goes into 64 1 times with a remainder of 31.
The next digit of our result is 1. 
Result so far: 1.0
If we take 33 away from 64, we end up with 31.
Include the next digit (4) from the dividend after 31, then repeat: 314 / 33

Moving on to step 3:
33 can be fit into 314 9 times, resulting in a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 19.0
If we subtract 297 from 314, we get 17.
Append the next digit (8) from the dividend to 17 and continue with: 178 / 33

Advancing to step 4:
33 can be fit into 178 5 times, resulting in a remainder of 13.
Write down 5 as next digit of the result. 
Result so far: 195.0
If we take 165 away from 178, we end up with 13.
Append the next digit (2) from the dividend to 13 and continue with: 132 / 33

On to step 5:
132 divided by 33 is 4 with a remainder of 0.
Put 4 as the next digit of the answer. 
Result so far: 1954.0
Subtracting 132 from 132 leaves us with 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 33

Going ahead to step 6:
The number 33 fits into 3 0 times, leaving a remainder of 3.
Use 0 as the next digit of our solution. 
Result so far: 19540.0
Subtract 0 from 3 to get 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 7:
30 divided by 33 is 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 19540.0
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 8:
When dividing 300 by 33, we get 9 with a remainder of 3.
Record the quotient 9 as the next digit in the result. 
Result so far: 19540.09
Subtracting 297 from 300 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.

Let's proceed to step 9:
When dividing 30 by 33, we get 0 with a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 19540.09
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.

Step 10:
33 can be fit into 300 9 times, resulting in a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 19540.0909
If we take 297 away from 300, 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 11:
If we divide 30 by 33, we get 0 and a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 19540.0909
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.

Step 12:
33 goes into 300 9 times with a remainder of 3.
The number 9 becomes the next digit in our result. 
Result so far: 19540.090909
Subtracting 297 from 300 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 13:
The number 33 fits into 30 0 times, leaving a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 19540.090909
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 14:
When dividing 300 by 33, we get 9 with a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 19540.09090909
The remainder is 3 after subtracting 297 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

The final outcome is 19540.09090909, with a leftover of 3e-09.