We're dividing 945380 by 99 
The aim is to understand the frequency of 99 in 945380.

Advancing to step 1:
9 divided by 99 is 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 99

Advancing to step 2:
99 can be fit into 94 0 times, resulting in a remainder of 94.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 94 and we're left with 94.
Grab the next digit (5) from the dividend, add it to 94, then carry on: 945 / 99

Let's proceed to step 3:
99 can be fit into 945 9 times, resulting in a remainder of 54.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 891 from 945 to get 54.
Append the next digit (3) from the dividend to 54 and continue with: 543 / 99

On to step 4:
99 goes into 543 5 times with a remainder of 48.
Use 5 as the next digit of our solution. 
Result so far: 95.0
If we take 495 away from 543, we end up with 48.
Take the next digit (8) from the dividend and append it to 48, then repeat: 488 / 99

Let's proceed to step 5:
488 divided by 99 is 4 with a remainder of 92.
Write down 4 as next digit of the result. 
Result so far: 954.0
Subtracting 396 from 488 leaves us with 92.
Grab the next digit (0) from the dividend, add it to 92, then carry on: 920 / 99

Moving on to step 6:
If we divide 920 by 99, we get 9 and a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 9549.0
Deduct 891 from 920 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Advancing to step 7:
99 can be fit into 290 2 times, resulting in a remainder of 92.
Use 2 as the next digit of our solution. 
Result so far: 9549.2
If we subtract 198 from 290, we get 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Moving on to step 8:
99 goes into 920 9 times with a remainder of 29.
Record the quotient 9 as the next digit in the result. 
Result so far: 9549.29
If we subtract 891 from 920, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 9:
If we divide 290 by 99, we get 2 and a remainder of 92.
Record the quotient 2 as the next digit in the result. 
Result so far: 9549.292
Deduct 198 from 290 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Let's proceed to step 10:
When dividing 920 by 99, we get 9 with a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 9549.2929
Deduct 891 from 920 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 11:
The number 99 fits into 290 2 times, leaving a remainder of 92.
Record the quotient 2 as the next digit in the result. 
Result so far: 9549.29292
If we take 198 away from 290, we end up with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Advancing to step 12:
The number 99 fits into 920 9 times, leaving a remainder of 29.
The next digit of our result is 9. 
Result so far: 9549.292929
If we subtract 891 from 920, we get 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

Let's proceed to step 13:
99 can be fit into 290 2 times, resulting in a remainder of 92.
Put 2 as the next digit of the answer. 
Result so far: 9549.2929292
Subtracting 198 from 290 leaves us with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Advancing to step 14:
99 goes into 920 9 times with a remainder of 29.
Use 9 as the next digit of our solution. 
Result so far: 9549.29292929
Deduct 891 from 920 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

The final result is 9549.29292929 with a remainder of 2.9e-08.