We look at the division of 21852632 by 990 
The aim is to understand the frequency of 990 in 21852632.

Let's proceed to step 1:
2 divided by 990 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 990

Going ahead to step 2:
The number 990 fits into 21 0 times, leaving a remainder of 21.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 21 and we're left with 21.
Bring next digit (8) of the dividend behind the 21 and repeat the process: 218 / 990

On to step 3:
If we divide 218 by 990, we get 0 and a remainder of 218.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 218 and we're left with 218.
Bring next digit (5) of the dividend behind the 218 and repeat the process: 2185 / 990

Going ahead to step 4:
990 goes into 2185 2 times with a remainder of 205.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
The remainder is 205 after subtracting 1980 from 2185.
Bring next digit (2) of the dividend behind the 205 and repeat the process: 2052 / 990

Step 5:
If we divide 2052 by 990, we get 2 and a remainder of 72.
Write down 2 as next digit of the result. 
Result so far: 22.0
If we subtract 1980 from 2052, we get 72.
Include the next digit (6) from the dividend after 72, then repeat: 726 / 990

Going ahead to step 6:
When dividing 726 by 990, we get 0 with a remainder of 726.
Write down 0 as next digit of the result. 
Result so far: 220.0
If we take 0 away from 726, we end up with 726.
Fetch the next digit (3) from the dividend, attach it to 726 and continue: 7263 / 990

Going ahead to step 7:
990 can be fit into 7263 7 times, resulting in a remainder of 333.
Record the quotient 7 as the next digit in the result. 
Result so far: 2207.0
Subtract 6930 from 7263 to get 333.
Grab the next digit (2) from the dividend, add it to 333, then carry on: 3332 / 990

On to step 8:
If we divide 3332 by 990, we get 3 and a remainder of 362.
The next digit of our result is 3. 
Result so far: 22073.0
The remainder is 362 after subtracting 2970 from 3332.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3620, and continue the process.

Step 9:
The number 990 fits into 3620 3 times, leaving a remainder of 650.
Record the quotient 3 as the next digit in the result. 
Result so far: 22073.3
Subtracting 2970 from 3620 leaves us with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Let's proceed to step 10:
If we divide 6500 by 990, we get 6 and a remainder of 560.
Record the quotient 6 as the next digit in the result. 
Result so far: 22073.36
If we take 5940 away from 6500, we end up with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Let's proceed to step 11:
The number 990 fits into 5600 5 times, leaving a remainder of 650.
Write down 5 as next digit of the result. 
Result so far: 22073.365
Subtract 4950 from 5600 to get 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

On to step 12:
If we divide 6500 by 990, we get 6 and a remainder of 560.
Put 6 as the next digit of the answer. 
Result so far: 22073.3656
The remainder is 560 after subtracting 5940 from 6500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 13:
If we divide 5600 by 990, we get 5 and a remainder of 650.
The number 5 becomes the next digit in our result. 
Result so far: 22073.36565
Subtracting 4950 from 5600 leaves us with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Going ahead to step 14:
990 can be fit into 6500 6 times, resulting in a remainder of 560.
Use 6 as the next digit of our solution. 
Result so far: 22073.365656
Subtracting 5940 from 6500 leaves us with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Moving on to step 15:
When dividing 5600 by 990, we get 5 with a remainder of 650.
Write down 5 as next digit of the result. 
Result so far: 22073.3656565
If we take 4950 away from 5600, we end up with 650.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6500, and continue the process.

Let's proceed to step 16:
The number 990 fits into 6500 6 times, leaving a remainder of 560.
The next digit of our result is 6. 
Result so far: 22073.36565656
The remainder is 560 after subtracting 5940 from 6500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

The final outcome is 22073.36565656, with a leftover of 5.6e-07.