636341 divided by 99 
The aim is to understand the frequency of 99 in 636341.

Advancing to step 1:
If we divide 6 by 99, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 99

Step 2:
99 can be fit into 63 0 times, resulting in a remainder of 63.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 63, we get 63.
Include the next digit (6) from the dividend after 63, then repeat: 636 / 99

On to step 3:
99 goes into 636 6 times with a remainder of 42.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 594 away from 636, we end up with 42.
Fetch the next digit (3) from the dividend, attach it to 42 and continue: 423 / 99

Step 4:
If we divide 423 by 99, we get 4 and a remainder of 27.
Record the quotient 4 as the next digit in the result. 
Result so far: 64.0
If we subtract 396 from 423, we get 27.
Include the next digit (4) from the dividend after 27, then repeat: 274 / 99

Let's proceed to step 5:
If we divide 274 by 99, we get 2 and a remainder of 76.
The next digit of our result is 2. 
Result so far: 642.0
If we take 198 away from 274, we end up with 76.
Append the next digit (1) from the dividend to 76 and continue with: 761 / 99

Step 6:
The number 99 fits into 761 7 times, leaving a remainder of 68.
The next digit of our result is 7. 
Result so far: 6427.0
Subtracting 693 from 761 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Going ahead to step 7:
99 can be fit into 680 6 times, resulting in a remainder of 86.
Use 6 as the next digit of our solution. 
Result so far: 6427.6
The remainder is 86 after subtracting 594 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 8:
The number 99 fits into 860 8 times, leaving a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 6427.68
If we take 792 away from 860, we end up with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 9:
The number 99 fits into 680 6 times, leaving a remainder of 86.
The next digit of our result is 6. 
Result so far: 6427.686
Subtracting 594 from 680 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Moving on to step 10:
If we divide 860 by 99, we get 8 and a remainder of 68.
Use 8 as the next digit of our solution. 
Result so far: 6427.6868
Subtract 792 from 860 to get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 11:
680 divided by 99 is 6 with a remainder of 86.
Write down 6 as next digit of the result. 
Result so far: 6427.68686
The remainder is 86 after subtracting 594 from 680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Going ahead to step 12:
If we divide 860 by 99, we get 8 and a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 6427.686868
Subtracting 792 from 860 leaves us with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 13:
99 goes into 680 6 times with a remainder of 86.
The next digit of our result is 6. 
Result so far: 6427.6868686
Subtracting 594 from 680 leaves us with 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

Advancing to step 14:
The number 99 fits into 860 8 times, leaving a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 6427.68686868
Deduct 792 from 860 and we're left with 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Our division results in 6427.68686868 with a remaining 6.8e-08.