21330038 divided by 636 
The aim is to understand the frequency of 636 in 21330038.

Step 1:
636 goes into 2 0 times with 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.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 636

Step 2:
The number 636 fits into 21 0 times, leaving a remainder of 21.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Append the next digit (3) from the dividend to 21 and continue with: 213 / 636

Moving on to step 3:
636 goes into 213 0 times with a remainder of 213.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 213 after subtracting 0 from 213.
Grab the next digit (3) from the dividend, add it to 213, then carry on: 2133 / 636

Advancing to step 4:
If we divide 2133 by 636, we get 3 and a remainder of 225.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 1908 from 2133 leaves us with 225.
Grab the next digit (0) from the dividend, add it to 225, then carry on: 2250 / 636

On to step 5:
636 can be fit into 2250 3 times, resulting in a remainder of 342.
Put 3 as the next digit of the answer. 
Result so far: 33.0
Deduct 1908 from 2250 and we're left with 342.
Grab the next digit (0) from the dividend, add it to 342, then carry on: 3420 / 636

On to step 6:
636 goes into 3420 5 times with a remainder of 240.
Put 5 as the next digit of the answer. 
Result so far: 335.0
Deduct 3180 from 3420 and we're left with 240.
Include the next digit (3) from the dividend after 240, then repeat: 2403 / 636

On to step 7:
636 goes into 2403 3 times with a remainder of 495.
The next digit of our result is 3. 
Result so far: 3353.0
The remainder is 495 after subtracting 1908 from 2403.
Fetch the next digit (8) from the dividend, attach it to 495 and continue: 4958 / 636

Let's proceed to step 8:
636 goes into 4958 7 times with a remainder of 506.
The number 7 becomes the next digit in our result. 
Result so far: 33537.0
Subtracting 4452 from 4958 leaves us with 506.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5060, and continue the process.

On to step 9:
636 can be fit into 5060 7 times, resulting in a remainder of 608.
Use 7 as the next digit of our solution. 
Result so far: 33537.7
Subtracting 4452 from 5060 leaves us with 608.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6080, and continue the process.

Advancing to step 10:
636 goes into 6080 9 times with a remainder of 356.
Use 9 as the next digit of our solution. 
Result so far: 33537.79
If we take 5724 away from 6080, we end up with 356.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3560, and continue the process.

On to step 11:
If we divide 3560 by 636, we get 5 and a remainder of 380.
Put 5 as the next digit of the answer. 
Result so far: 33537.795
The remainder is 380 after subtracting 3180 from 3560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3800, and continue the process.

Going ahead to step 12:
3800 divided by 636 is 5 with a remainder of 620.
The number 5 becomes the next digit in our result. 
Result so far: 33537.7955
The remainder is 620 after subtracting 3180 from 3800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6200, and continue the process.

After the division, we end up with 33537.7955 and a remainder of 0.0062.