We're dividing 39089190 by 990 
The aim is to understand the frequency of 990 in 39089190.

Moving on to step 1:
When dividing 3 by 990, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 990

Step 2:
When dividing 39 by 990, we get 0 with a remainder of 39.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 39 after subtracting 0 from 39.
Fetch the next digit (0) from the dividend, attach it to 39 and continue: 390 / 990

On to step 3:
When dividing 390 by 990, we get 0 with a remainder of 390.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 390 after subtracting 0 from 390.
Include the next digit (8) from the dividend after 390, then repeat: 3908 / 990

Step 4:
The number 990 fits into 3908 3 times, leaving a remainder of 938.
Put 3 as the next digit of the answer. 
Result so far: 3.0
If we subtract 2970 from 3908, we get 938.
Grab the next digit (9) from the dividend, add it to 938, then carry on: 9389 / 990

Moving on to step 5:
When dividing 9389 by 990, we get 9 with a remainder of 479.
Use 9 as the next digit of our solution. 
Result so far: 39.0
If we take 8910 away from 9389, we end up with 479.
Fetch the next digit (1) from the dividend, attach it to 479 and continue: 4791 / 990

Going ahead to step 6:
4791 divided by 990 is 4 with a remainder of 831.
The number 4 becomes the next digit in our result. 
Result so far: 394.0
If we subtract 3960 from 4791, we get 831.
Include the next digit (9) from the dividend after 831, then repeat: 8319 / 990

On to step 7:
990 can be fit into 8319 8 times, resulting in a remainder of 399.
Write down 8 as next digit of the result. 
Result so far: 3948.0
If we subtract 7920 from 8319, we get 399.
Grab the next digit (0) from the dividend, add it to 399, then carry on: 3990 / 990

On to step 8:
990 can be fit into 3990 4 times, resulting in a remainder of 30.
Write down 4 as next digit of the result. 
Result so far: 39484.0
Deduct 3960 from 3990 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 9:
990 goes into 300 0 times with a remainder of 300.
The next digit of our result is 0. 
Result so far: 39484.0
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Let's proceed to step 10:
The number 990 fits into 3000 3 times, leaving a remainder of 30.
Put 3 as the next digit of the answer. 
Result so far: 39484.03
Subtract 2970 from 3000 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 11:
990 goes into 300 0 times with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 39484.03
If we take 0 away from 300, we end up with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Going ahead to step 12:
If we divide 3000 by 990, we get 3 and a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 39484.0303
If we take 2970 away from 3000, we end up with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 13:
990 goes into 300 0 times with a remainder of 300.
The number 0 becomes the next digit in our result. 
Result so far: 39484.0303
Subtract 0 from 300 to get 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Moving on to step 14:
3000 divided by 990 is 3 with a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 39484.030303
Subtracting 2970 from 3000 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 15:
300 divided by 990 is 0 with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 39484.030303
Deduct 0 from 300 and we're left with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

Advancing to step 16:
When dividing 3000 by 990, we get 3 with a remainder of 30.
Write down 3 as next digit of the result. 
Result so far: 39484.03030303
If we subtract 2970 from 3000, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 39484.03030303 and a remainder of 3e-08.