Let's divide 580429 by 99
The aim is to understand the frequency of 99 in 580429.

Step 1:
The number 99 fits into 5 0 times, leaving a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 5, we get 5.
Fetch the next digit (8) from the dividend, attach it to 5 and continue: 58 / 99

Step 2:
99 goes into 58 0 times with a remainder of 58.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 58 leaves us with 58.
Take the next digit (0) from the dividend and append it to 58, then repeat: 580 / 99

Moving on to step 3:
99 can be fit into 580 5 times, resulting in a remainder of 85.
The number 5 becomes the next digit in our result. 
Result so far: 5.0
If we subtract 495 from 580, we get 85.
Append the next digit (4) from the dividend to 85 and continue with: 854 / 99

Advancing to step 4:
If we divide 854 by 99, we get 8 and a remainder of 62.
Put 8 as the next digit of the answer. 
Result so far: 58.0
Subtracting 792 from 854 leaves us with 62.
Bring next digit (2) of the dividend behind the 62 and repeat the process: 622 / 99

On to step 5:
99 goes into 622 6 times with a remainder of 28.
Use 6 as the next digit of our solution. 
Result so far: 586.0
The remainder is 28 after subtracting 594 from 622.
Fetch the next digit (9) from the dividend, attach it to 28 and continue: 289 / 99

Let's proceed to step 6:
The number 99 fits into 289 2 times, leaving a remainder of 91.
The next digit of our result is 2. 
Result so far: 5862.0
Deduct 198 from 289 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

On to step 7:
99 can be fit into 910 9 times, resulting in a remainder of 19.
Record the quotient 9 as the next digit in the result. 
Result so far: 5862.9
If we subtract 891 from 910, we get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 8:
The number 99 fits into 190 1 times, leaving a remainder of 91.
The number 1 becomes the next digit in our result. 
Result so far: 5862.91
The remainder is 91 after subtracting 99 from 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 9:
The number 99 fits into 910 9 times, leaving a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 5862.919
The remainder is 19 after subtracting 891 from 910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 10:
When dividing 190 by 99, we get 1 with a remainder of 91.
Use 1 as the next digit of our solution. 
Result so far: 5862.9191
Subtract 99 from 190 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

Advancing to step 11:
99 can be fit into 910 9 times, resulting in a remainder of 19.
Write down 9 as next digit of the result. 
Result so far: 5862.91919
Deduct 891 from 910 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 12:
99 can be fit into 190 1 times, resulting in a remainder of 91.
Use 1 as the next digit of our solution. 
Result so far: 5862.919191
Subtract 99 from 190 to get 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

On to step 13:
When dividing 910 by 99, we get 9 with a remainder of 19.
Use 9 as the next digit of our solution. 
Result so far: 5862.9191919
If we take 891 away from 910, we end up with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

On to step 14:
When dividing 190 by 99, we get 1 with a remainder of 91.
The number 1 becomes the next digit in our result. 
Result so far: 5862.91919191
Deduct 99 from 190 and we're left with 91.
Since there are no more digits in the dividend, we add a zero to the remainder making it 910, and continue the process.

The final result is 5862.91919191 with a remainder of 9.1e-08.