We're dividing 381800 by 99 
The aim is to understand the frequency of 99 in 381800.

Step 1:
If we divide 3 by 99, we get 0 and a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (8) from the dividend, attach it to 3 and continue: 38 / 99

Let's proceed to step 2:
99 can be fit into 38 0 times, resulting in a remainder of 38.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 38 to get 38.
Take the next digit (1) from the dividend and append it to 38, then repeat: 381 / 99

Moving on to step 3:
When dividing 381 by 99, we get 3 with a remainder of 84.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we take 297 away from 381, we end up with 84.
Grab the next digit (8) from the dividend, add it to 84, then carry on: 848 / 99

Going ahead to step 4:
99 goes into 848 8 times with a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 38.0
Deduct 792 from 848 and we're left with 56.
Include the next digit (0) from the dividend after 56, then repeat: 560 / 99

Going ahead to step 5:
99 goes into 560 5 times with a remainder of 65.
The next digit of our result is 5. 
Result so far: 385.0
If we take 495 away from 560, we end up with 65.
Fetch the next digit (0) from the dividend, attach it to 65 and continue: 650 / 99

On to step 6:
When dividing 650 by 99, we get 6 with a remainder of 56.
Put 6 as the next digit of the answer. 
Result so far: 3856.0
Subtracting 594 from 650 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 7:
If we divide 560 by 99, we get 5 and a remainder of 65.
The next digit of our result is 5. 
Result so far: 3856.5
Subtract 495 from 560 to get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Moving on to step 8:
99 goes into 650 6 times with a remainder of 56.
The next digit of our result is 6. 
Result so far: 3856.56
Deduct 594 from 650 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 9:
99 goes into 560 5 times with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 3856.565
If we subtract 495 from 560, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

On to step 10:
If we divide 650 by 99, we get 6 and a remainder of 56.
Write down 6 as next digit of the result. 
Result so far: 3856.5656
Subtracting 594 from 650 leaves us with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

On to step 11:
560 divided by 99 is 5 with a remainder of 65.
Record the quotient 5 as the next digit in the result. 
Result so far: 3856.56565
If we take 495 away from 560, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 12:
99 can be fit into 650 6 times, resulting in a remainder of 56.
Record the quotient 6 as the next digit in the result. 
Result so far: 3856.565656
Deduct 594 from 650 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Step 13:
99 goes into 560 5 times with a remainder of 65.
The next digit of our result is 5. 
Result so far: 3856.5656565
If we take 495 away from 560, we end up with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Step 14:
99 goes into 650 6 times with a remainder of 56.
The number 6 becomes the next digit in our result. 
Result so far: 3856.56565656
If we take 594 away from 650, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

In conclusion, the division gives 3856.56565656 with a balance of 5.6e-08.