We're dividing 80133514 by 990 
The aim is to understand the frequency of 990 in 80133514.

Going ahead to step 1:
When dividing 8 by 990, we get 0 with a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (0) from the dividend and append it to 8, then repeat: 80 / 990

Going ahead to step 2:
990 goes into 80 0 times with a remainder of 80.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 80 and we're left with 80.
Bring next digit (1) of the dividend behind the 80 and repeat the process: 801 / 990

Let's proceed to step 3:
If we divide 801 by 990, we get 0 and a remainder of 801.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 801 leaves us with 801.
Grab the next digit (3) from the dividend, add it to 801, then carry on: 8013 / 990

Advancing to step 4:
When dividing 8013 by 990, we get 8 with a remainder of 93.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtract 7920 from 8013 to get 93.
Grab the next digit (3) from the dividend, add it to 93, then carry on: 933 / 990

Let's proceed to step 5:
When dividing 933 by 990, we get 0 with a remainder of 933.
Write down 0 as next digit of the result. 
Result so far: 80.0
Subtract 0 from 933 to get 933.
Grab the next digit (5) from the dividend, add it to 933, then carry on: 9335 / 990

On to step 6:
9335 divided by 990 is 9 with a remainder of 425.
Put 9 as the next digit of the answer. 
Result so far: 809.0
If we subtract 8910 from 9335, we get 425.
Bring next digit (1) of the dividend behind the 425 and repeat the process: 4251 / 990

Let's proceed to step 7:
If we divide 4251 by 990, we get 4 and a remainder of 291.
Put 4 as the next digit of the answer. 
Result so far: 8094.0
The remainder is 291 after subtracting 3960 from 4251.
Fetch the next digit (4) from the dividend, attach it to 291 and continue: 2914 / 990

Advancing to step 8:
If we divide 2914 by 990, we get 2 and a remainder of 934.
Write down 2 as next digit of the result. 
Result so far: 80942.0
The remainder is 934 after subtracting 1980 from 2914.
Since there are no more digits in the dividend, we add a zero to the remainder making it 9340, and continue the process.

Advancing to step 9:
990 goes into 9340 9 times with a remainder of 430.
Write down 9 as next digit of the result. 
Result so far: 80942.9
The remainder is 430 after subtracting 8910 from 9340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Step 10:
When dividing 4300 by 990, we get 4 with a remainder of 340.
Write down 4 as next digit of the result. 
Result so far: 80942.94
Subtracting 3960 from 4300 leaves us with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Step 11:
990 can be fit into 3400 3 times, resulting in a remainder of 430.
Use 3 as the next digit of our solution. 
Result so far: 80942.943
If we take 2970 away from 3400, we end up with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Step 12:
4300 divided by 990 is 4 with a remainder of 340.
Use 4 as the next digit of our solution. 
Result so far: 80942.9434
Subtract 3960 from 4300 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 13:
If we divide 3400 by 990, we get 3 and a remainder of 430.
The number 3 becomes the next digit in our result. 
Result so far: 80942.94343
Deduct 2970 from 3400 and we're left with 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

Going ahead to step 14:
When dividing 4300 by 990, we get 4 with a remainder of 340.
Put 4 as the next digit of the answer. 
Result so far: 80942.943434
Subtract 3960 from 4300 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Advancing to step 15:
The number 990 fits into 3400 3 times, leaving a remainder of 430.
Record the quotient 3 as the next digit in the result. 
Result so far: 80942.9434343
If we subtract 2970 from 3400, we get 430.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4300, and continue the process.

On to step 16:
If we divide 4300 by 990, we get 4 and a remainder of 340.
The number 4 becomes the next digit in our result. 
Result so far: 80942.94343434
Subtract 3960 from 4300 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

After the division, we end up with 80942.94343434 and a remainder of 3.4e-07.