We divide 991145 by 90
We're looking to find how many times 90 goes into 991145.

Going ahead to step 1:
If we divide 9 by 90, we get 0 and a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 90

Going ahead to step 2:
If we divide 99 by 90, we get 1 and a remainder of 9.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 90 from 99 and we're left with 9.
Append the next digit (1) from the dividend to 9 and continue with: 91 / 90

Let's proceed to step 3:
The number 90 fits into 91 1 times, leaving a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 11.0
Subtracting 90 from 91 leaves us with 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 90

Step 4:
11 divided by 90 is 0 with a remainder of 11.
The next digit of our result is 0. 
Result so far: 110.0
If we subtract 0 from 11, we get 11.
Bring next digit (4) of the dividend behind the 11 and repeat the process: 114 / 90

Let's proceed to step 5:
90 can be fit into 114 1 times, resulting in a remainder of 24.
Use 1 as the next digit of our solution. 
Result so far: 1101.0
Subtracting 90 from 114 leaves us with 24.
Take the next digit (5) from the dividend and append it to 24, then repeat: 245 / 90

Going ahead to step 6:
90 goes into 245 2 times with a remainder of 65.
Put 2 as the next digit of the answer. 
Result so far: 11012.0
Deduct 180 from 245 and we're left 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.

On to step 7:
650 divided by 90 is 7 with a remainder of 20.
The number 7 becomes the next digit in our result. 
Result so far: 11012.7
If we subtract 630 from 650, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 8:
The number 90 fits into 200 2 times, leaving a remainder of 20.
Record the quotient 2 as the next digit in the result. 
Result so far: 11012.72
Subtracting 180 from 200 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 9:
If we divide 200 by 90, we get 2 and a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 11012.722
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 11012.722 and a remainder of 0.002.