11841983 divided by 90 
Our goal is to divide 11841983 by 90.

On to step 1:
When dividing 1 by 90, we get 0 with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 90

Going ahead to step 2:
90 can be fit into 11 0 times, resulting in a remainder of 11.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 11, we get 11.
Include the next digit (8) from the dividend after 11, then repeat: 118 / 90

On to step 3:
90 goes into 118 1 times with a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 90 from 118 and we're left with 28.
Fetch the next digit (4) from the dividend, attach it to 28 and continue: 284 / 90

Advancing to step 4:
90 goes into 284 3 times with a remainder of 14.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtracting 270 from 284 leaves us with 14.
Grab the next digit (1) from the dividend, add it to 14, then carry on: 141 / 90

Let's proceed to step 5:
141 divided by 90 is 1 with a remainder of 51.
Use 1 as the next digit of our solution. 
Result so far: 131.0
Subtracting 90 from 141 leaves us with 51.
Fetch the next digit (9) from the dividend, attach it to 51 and continue: 519 / 90

On to step 6:
If we divide 519 by 90, we get 5 and a remainder of 69.
Put 5 as the next digit of the answer. 
Result so far: 1315.0
If we take 450 away from 519, we end up with 69.
Include the next digit (8) from the dividend after 69, then repeat: 698 / 90

Moving on to step 7:
698 divided by 90 is 7 with a remainder of 68.
The next digit of our result is 7. 
Result so far: 13157.0
Deduct 630 from 698 and we're left with 68.
Take the next digit (3) from the dividend and append it to 68, then repeat: 683 / 90

Let's proceed to step 8:
The number 90 fits into 683 7 times, leaving a remainder of 53.
The number 7 becomes the next digit in our result. 
Result so far: 131577.0
The remainder is 53 after subtracting 630 from 683.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 9:
90 can be fit into 530 5 times, resulting in a remainder of 80.
The number 5 becomes the next digit in our result. 
Result so far: 131577.5
Subtracting 450 from 530 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 10:
When dividing 800 by 90, we get 8 with a remainder of 80.
Use 8 as the next digit of our solution. 
Result so far: 131577.58
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 11:
90 goes into 800 8 times with a remainder of 80.
Record the quotient 8 as the next digit in the result. 
Result so far: 131577.588
If we subtract 720 from 800, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 131577.588 with a remainder of 0.008.