Let's divide 991434 by 90
We want to divide 991434 by 90.

Going ahead to step 1:
If we divide 9 by 90, we get 0 and a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (9) of the dividend behind the 9 and repeat the process: 99 / 90

Moving on to step 2:
90 can be fit into 99 1 times, resulting in a remainder of 9.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 90 from 99, we get 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 90

Step 3:
If we divide 91 by 90, we get 1 and a remainder of 1.
Put 1 as the next digit of the answer. 
Result so far: 11.0
Subtract 90 from 91 to get 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 90

Going ahead to step 4:
When dividing 14 by 90, we get 0 with a remainder of 14.
Put 0 as the next digit of the answer. 
Result so far: 110.0
Subtract 0 from 14 to get 14.
Fetch the next digit (3) from the dividend, attach it to 14 and continue: 143 / 90

On to step 5:
The number 90 fits into 143 1 times, leaving a remainder of 53.
The number 1 becomes the next digit in our result. 
Result so far: 1101.0
Deduct 90 from 143 and we're left with 53.
Fetch the next digit (4) from the dividend, attach it to 53 and continue: 534 / 90

Going ahead to step 6:
534 divided by 90 is 5 with a remainder of 84.
The next digit of our result is 5. 
Result so far: 11015.0
Subtracting 450 from 534 leaves us with 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Step 7:
When dividing 840 by 90, we get 9 with a remainder of 30.
Record the quotient 9 as the next digit in the result. 
Result so far: 11015.9
Subtract 810 from 840 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.

On to step 8:
90 goes into 300 3 times with a remainder of 30.
Use 3 as the next digit of our solution. 
Result so far: 11015.93
Subtracting 270 from 300 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.

Step 9:
90 goes into 300 3 times with a remainder of 30.
The number 3 becomes the next digit in our result. 
Result so far: 11015.933
The remainder is 30 after subtracting 270 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

The quotient of the division is 11015.933, and the remainder is 0.003.