Let's divide 216810 by 90
We want to divide 216810 by 90.

On to step 1:
90 can be fit into 2 0 times, resulting in a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Append the next digit (1) from the dividend to 2 and continue with: 21 / 90

Moving on to step 2:
The number 90 fits into 21 0 times, leaving a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 21 leaves us with 21.
Take the next digit (6) from the dividend and append it to 21, then repeat: 216 / 90

Moving on to step 3:
If we divide 216 by 90, we get 2 and a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtract 180 from 216 to get 36.
Fetch the next digit (8) from the dividend, attach it to 36 and continue: 368 / 90

Step 4:
90 goes into 368 4 times with a remainder of 8.
The number 4 becomes the next digit in our result. 
Result so far: 24.0
Subtracting 360 from 368 leaves us with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 90

Let's proceed to step 5:
If we divide 81 by 90, we get 0 and a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 240.0
Deduct 0 from 81 and we're left with 81.
Bring next digit (0) of the dividend behind the 81 and repeat the process: 810 / 90

Going ahead to step 6:
The number 90 fits into 810 9 times, leaving a remainder of 0.
Write down 9 as next digit of the result. 
Result so far: 2409.0
Subtracting 810 from 810 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
0 divided by 90 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 2409.0
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
If we divide 0 by 90, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 2409.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

After the division, we end up with 2409.0 and a remainder of 0.0.