We're dividing 583988 by 99 
The aim is to understand the frequency of 99 in 583988.

Step 1:
99 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Take the next digit (8) from the dividend and append it to 5, then repeat: 58 / 99

Moving on to step 2:
99 can be fit into 58 0 times, resulting in a remainder of 58.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 58 and we're left with 58.
Take the next digit (3) from the dividend and append it to 58, then repeat: 583 / 99

Going ahead to step 3:
When dividing 583 by 99, we get 5 with a remainder of 88.
Put 5 as the next digit of the answer. 
Result so far: 5.0
Subtracting 495 from 583 leaves us with 88.
Include the next digit (9) from the dividend after 88, then repeat: 889 / 99

Step 4:
The number 99 fits into 889 8 times, leaving a remainder of 97.
Put 8 as the next digit of the answer. 
Result so far: 58.0
Subtract 792 from 889 to get 97.
Append the next digit (8) from the dividend to 97 and continue with: 978 / 99

Going ahead to step 5:
If we divide 978 by 99, we get 9 and a remainder of 87.
Put 9 as the next digit of the answer. 
Result so far: 589.0
The remainder is 87 after subtracting 891 from 978.
Bring next digit (8) of the dividend behind the 87 and repeat the process: 878 / 99

Going ahead to step 6:
The number 99 fits into 878 8 times, leaving a remainder of 86.
Use 8 as the next digit of our solution. 
Result so far: 5898.0
If we take 792 away from 878, we end up 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.

Let's proceed to step 7:
When dividing 860 by 99, we get 8 with a remainder of 68.
Write down 8 as next digit of the result. 
Result so far: 5898.8
The remainder is 68 after subtracting 792 from 860.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Let's proceed to step 8:
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: 5898.86
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 9:
99 can be fit into 860 8 times, resulting in a remainder of 68.
The next digit of our result is 8. 
Result so far: 5898.868
If we subtract 792 from 860, we 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.

Moving on to step 10:
99 goes into 680 6 times with a remainder of 86.
Use 6 as the next digit of our solution. 
Result so far: 5898.8686
If we subtract 594 from 680, we get 86.
Since there are no more digits in the dividend, we add a zero to the remainder making it 860, and continue the process.

On to step 11:
99 can be fit into 860 8 times, resulting in a remainder of 68.
Put 8 as the next digit of the answer. 
Result so far: 5898.86868
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.

Going ahead to step 12:
99 can be fit into 680 6 times, resulting in a remainder of 86.
The number 6 becomes the next digit in our result. 
Result so far: 5898.868686
Subtract 594 from 680 to get 86.
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 13:
When dividing 860 by 99, we get 8 with a remainder of 68.
Record the quotient 8 as the next digit in the result. 
Result so far: 5898.8686868
If we subtract 792 from 860, we 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.

On to step 14:
680 divided by 99 is 6 with a remainder of 86.
The number 6 becomes the next digit in our result. 
Result so far: 5898.86868686
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.

The quotient of the division is 5898.86868686, and the remainder is 8.6e-08.