We look at the division of 883840 by 90 
Let's see how many times 90 fits into 883840.

On to step 1:
90 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (8) from the dividend, add it to 8, then carry on: 88 / 90

Moving on to step 2:
90 goes into 88 0 times with a remainder of 88.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 88, we end up with 88.
Grab the next digit (3) from the dividend, add it to 88, then carry on: 883 / 90

On to step 3:
If we divide 883 by 90, we get 9 and a remainder of 73.
The number 9 becomes the next digit in our result. 
Result so far: 9.0
Subtract 810 from 883 to get 73.
Bring next digit (8) of the dividend behind the 73 and repeat the process: 738 / 90

Let's proceed to step 4:
90 can be fit into 738 8 times, resulting in a remainder of 18.
Use 8 as the next digit of our solution. 
Result so far: 98.0
Deduct 720 from 738 and we're left with 18.
Fetch the next digit (4) from the dividend, attach it to 18 and continue: 184 / 90

Moving on to step 5:
184 divided by 90 is 2 with a remainder of 4.
Write down 2 as next digit of the result. 
Result so far: 982.0
Deduct 180 from 184 and we're left with 4.
Grab the next digit (0) from the dividend, add it to 4, then carry on: 40 / 90

Let's proceed to step 6:
When dividing 40 by 90, we get 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 9820.0
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 7:
400 divided by 90 is 4 with a remainder of 40.
Write down 4 as next digit of the result. 
Result so far: 9820.4
Subtract 360 from 400 to get 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 8:
The number 90 fits into 400 4 times, leaving a remainder of 40.
Use 4 as the next digit of our solution. 
Result so far: 9820.44
Deduct 360 from 400 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

The final outcome is 9820.44, with a leftover of 0.04.