We divide 240643 by 90
We want to figure out the number of times 240643 can be divided by 90.

On to step 1:
90 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 90

Let's proceed to step 2:
90 can be fit into 24 0 times, resulting in a remainder of 24.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 24 after subtracting 0 from 24.
Include the next digit (0) from the dividend after 24, then repeat: 240 / 90

Let's proceed to step 3:
240 divided by 90 is 2 with a remainder of 60.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
Deduct 180 from 240 and we're left with 60.
Bring next digit (6) of the dividend behind the 60 and repeat the process: 606 / 90

Going ahead to step 4:
90 can be fit into 606 6 times, resulting in a remainder of 66.
Write down 6 as next digit of the result. 
Result so far: 26.0
If we subtract 540 from 606, we get 66.
Append the next digit (4) from the dividend to 66 and continue with: 664 / 90

Moving on to step 5:
If we divide 664 by 90, we get 7 and a remainder of 34.
Write down 7 as next digit of the result. 
Result so far: 267.0
Subtracting 630 from 664 leaves us with 34.
Bring next digit (3) of the dividend behind the 34 and repeat the process: 343 / 90

Let's proceed to step 6:
The number 90 fits into 343 3 times, leaving a remainder of 73.
The number 3 becomes the next digit in our result. 
Result so far: 2673.0
If we take 270 away from 343, we end up with 73.
Since there are no more digits in the dividend, we add a zero to the remainder making it 730, and continue the process.

Step 7:
730 divided by 90 is 8 with a remainder of 10.
Put 8 as the next digit of the answer. 
Result so far: 2673.8
Subtracting 720 from 730 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
The number 90 fits into 100 1 times, leaving a remainder of 10.
The number 1 becomes the next digit in our result. 
Result so far: 2673.81
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 9:
100 divided by 90 is 1 with a remainder of 10.
Write down 1 as next digit of the result. 
Result so far: 2673.811
If we subtract 90 from 100, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 2673.811 and a remainder of 0.001.