We look at the division of 535954 by 99 
The aim is to understand the frequency of 99 in 535954.

Advancing to step 1:
99 can be fit into 5 0 times, resulting in a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 99

Let's proceed to step 2:
The number 99 fits into 53 0 times, leaving a remainder of 53.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 53 after subtracting 0 from 53.
Include the next digit (5) from the dividend after 53, then repeat: 535 / 99

On to step 3:
If we divide 535 by 99, we get 5 and a remainder of 40.
The next digit of our result is 5. 
Result so far: 5.0
Subtracting 495 from 535 leaves us with 40.
Append the next digit (9) from the dividend to 40 and continue with: 409 / 99

Advancing to step 4:
99 goes into 409 4 times with a remainder of 13.
The next digit of our result is 4. 
Result so far: 54.0
If we subtract 396 from 409, we get 13.
Append the next digit (5) from the dividend to 13 and continue with: 135 / 99

Going ahead to step 5:
When dividing 135 by 99, we get 1 with a remainder of 36.
Write down 1 as next digit of the result. 
Result so far: 541.0
Deduct 99 from 135 and we're left with 36.
Append the next digit (4) from the dividend to 36 and continue with: 364 / 99

Advancing to step 6:
364 divided by 99 is 3 with a remainder of 67.
The next digit of our result is 3. 
Result so far: 5413.0
If we take 297 away from 364, we end up with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 7:
The number 99 fits into 670 6 times, leaving a remainder of 76.
Put 6 as the next digit of the answer. 
Result so far: 5413.6
If we subtract 594 from 670, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Moving on to step 8:
When dividing 760 by 99, we get 7 with a remainder of 67.
Record the quotient 7 as the next digit in the result. 
Result so far: 5413.67
Subtract 693 from 760 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Moving on to step 9:
If we divide 670 by 99, we get 6 and a remainder of 76.
Use 6 as the next digit of our solution. 
Result so far: 5413.676
The remainder is 76 after subtracting 594 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Going ahead to step 10:
The number 99 fits into 760 7 times, leaving a remainder of 67.
The number 7 becomes the next digit in our result. 
Result so far: 5413.6767
The remainder is 67 after subtracting 693 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Step 11:
99 goes into 670 6 times with a remainder of 76.
Write down 6 as next digit of the result. 
Result so far: 5413.67676
Subtracting 594 from 670 leaves us with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 12:
99 can be fit into 760 7 times, resulting in a remainder of 67.
Record the quotient 7 as the next digit in the result. 
Result so far: 5413.676767
Deduct 693 from 760 and we're left with 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 13:
670 divided by 99 is 6 with a remainder of 76.
Record the quotient 6 as the next digit in the result. 
Result so far: 5413.6767676
Subtract 594 from 670 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Advancing to step 14:
The number 99 fits into 760 7 times, leaving a remainder of 67.
Record the quotient 7 as the next digit in the result. 
Result so far: 5413.67676767
Subtract 693 from 760 to get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

After the division, we end up with 5413.67676767 and a remainder of 6.7e-08.