We're dividing 33756355 by 644 
The aim is to understand the frequency of 644 in 33756355.

Moving on to step 1:
The number 644 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Include the next digit (3) from the dividend after 3, then repeat: 33 / 644

Let's proceed to step 2:
644 goes into 33 0 times with a remainder of 33.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 33 to get 33.
Bring next digit (7) of the dividend behind the 33 and repeat the process: 337 / 644

Going ahead to step 3:
644 goes into 337 0 times with a remainder of 337.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 337 after subtracting 0 from 337.
Append the next digit (5) from the dividend to 337 and continue with: 3375 / 644

Step 4:
3375 divided by 644 is 5 with a remainder of 155.
Use 5 as the next digit of our solution. 
Result so far: 5.0
The remainder is 155 after subtracting 3220 from 3375.
Grab the next digit (6) from the dividend, add it to 155, then carry on: 1556 / 644

Moving on to step 5:
1556 divided by 644 is 2 with a remainder of 268.
The next digit of our result is 2. 
Result so far: 52.0
Subtract 1288 from 1556 to get 268.
Grab the next digit (3) from the dividend, add it to 268, then carry on: 2683 / 644

Moving on to step 6:
644 goes into 2683 4 times with a remainder of 107.
Put 4 as the next digit of the answer. 
Result so far: 524.0
If we take 2576 away from 2683, we end up with 107.
Take the next digit (5) from the dividend and append it to 107, then repeat: 1075 / 644

Step 7:
The number 644 fits into 1075 1 times, leaving a remainder of 431.
Put 1 as the next digit of the answer. 
Result so far: 5241.0
Subtracting 644 from 1075 leaves us with 431.
Bring next digit (5) of the dividend behind the 431 and repeat the process: 4315 / 644

On to step 8:
The number 644 fits into 4315 6 times, leaving a remainder of 451.
Put 6 as the next digit of the answer. 
Result so far: 52416.0
If we take 3864 away from 4315, we end up with 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Going ahead to step 9:
644 can be fit into 4510 7 times, resulting in a remainder of 2.
Write down 7 as next digit of the result. 
Result so far: 52416.7
Subtracting 4508 from 4510 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 10:
644 goes into 20 0 times with a remainder of 20.
The next digit of our result is 0. 
Result so far: 52416.7
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.

Let's proceed to step 11:
644 goes into 200 0 times with a remainder of 200.
Put 0 as the next digit of the answer. 
Result so far: 52416.7
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The quotient of the division is 52416.7, and the remainder is 0.02.