We're dividing 87593302 by 990 
The aim is to understand the frequency of 990 in 87593302.

Advancing 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
Deduct 0 from 8 and we're left with 8.
Bring next digit (7) of the dividend behind the 8 and repeat the process: 87 / 990

Going ahead to step 2:
990 goes into 87 0 times with a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Include the next digit (5) from the dividend after 87, then repeat: 875 / 990

Advancing to step 3:
If we divide 875 by 990, we get 0 and a remainder of 875.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 875, we end up with 875.
Append the next digit (9) from the dividend to 875 and continue with: 8759 / 990

On to step 4:
8759 divided by 990 is 8 with a remainder of 839.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 7920 from 8759 leaves us with 839.
Append the next digit (3) from the dividend to 839 and continue with: 8393 / 990

Advancing to step 5:
990 can be fit into 8393 8 times, resulting in a remainder of 473.
The next digit of our result is 8. 
Result so far: 88.0
Subtracting 7920 from 8393 leaves us with 473.
Include the next digit (3) from the dividend after 473, then repeat: 4733 / 990

Advancing to step 6:
If we divide 4733 by 990, we get 4 and a remainder of 773.
The next digit of our result is 4. 
Result so far: 884.0
Deduct 3960 from 4733 and we're left with 773.
Take the next digit (0) from the dividend and append it to 773, then repeat: 7730 / 990

Going ahead to step 7:
If we divide 7730 by 990, we get 7 and a remainder of 800.
Put 7 as the next digit of the answer. 
Result so far: 8847.0
The remainder is 800 after subtracting 6930 from 7730.
Bring next digit (2) of the dividend behind the 800 and repeat the process: 8002 / 990

Advancing to step 8:
8002 divided by 990 is 8 with a remainder of 82.
Record the quotient 8 as the next digit in the result. 
Result so far: 88478.0
If we take 7920 away from 8002, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Step 9:
The number 990 fits into 820 0 times, leaving a remainder of 820.
The next digit of our result is 0. 
Result so far: 88478.0
If we take 0 away from 820, we end up with 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

Moving on to step 10:
The number 990 fits into 8200 8 times, leaving a remainder of 280.
The next digit of our result is 8. 
Result so far: 88478.08
The remainder is 280 after subtracting 7920 from 8200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Going ahead to step 11:
When dividing 2800 by 990, we get 2 with a remainder of 820.
Use 2 as the next digit of our solution. 
Result so far: 88478.082
Subtract 1980 from 2800 to get 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

Going ahead to step 12:
If we divide 8200 by 990, we get 8 and a remainder of 280.
The next digit of our result is 8. 
Result so far: 88478.0828
If we take 7920 away from 8200, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Let's proceed to step 13:
990 can be fit into 2800 2 times, resulting in a remainder of 820.
The next digit of our result is 2. 
Result so far: 88478.08282
Subtracting 1980 from 2800 leaves us with 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

On to step 14:
If we divide 8200 by 990, we get 8 and a remainder of 280.
Use 8 as the next digit of our solution. 
Result so far: 88478.082828
Deduct 7920 from 8200 and we're left with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 15:
990 goes into 2800 2 times with a remainder of 820.
The next digit of our result is 2. 
Result so far: 88478.0828282
Subtracting 1980 from 2800 leaves us with 820.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8200, and continue the process.

Step 16:
The number 990 fits into 8200 8 times, leaving a remainder of 280.
Use 8 as the next digit of our solution. 
Result so far: 88478.08282828
Subtracting 7920 from 8200 leaves us with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Our division results in 88478.08282828 with a remaining 2.8e-07.