21812 ÷ 9 
We want to figure out the number of times 21812 can be divided by 9.

Moving on to step 1:
2 divided by 9 is 0 with a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 2 leaves us with 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 9

Step 2:
9 can be fit into 21 2 times, resulting in a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 2.0
If we take 18 away from 21, we end up with 3.
Take the next digit (8) from the dividend and append it to 3, then repeat: 38 / 9

On to step 3:
9 can be fit into 38 4 times, resulting in a remainder of 2.
Put 4 as the next digit of the answer. 
Result so far: 24.0
Subtracting 36 from 38 leaves us with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 9

Going ahead to step 4:
9 can be fit into 21 2 times, resulting in a remainder of 3.
Put 2 as the next digit of the answer. 
Result so far: 242.0
Subtract 18 from 21 to get 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 9

Going ahead to step 5:
32 divided by 9 is 3 with a remainder of 5.
The number 3 becomes the next digit in our result. 
Result so far: 2423.0
The remainder is 5 after subtracting 27 from 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Step 6:
When dividing 50 by 9, we get 5 with a remainder of 5.
The number 5 becomes the next digit in our result. 
Result so far: 2423.5
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
The number 9 fits into 50 5 times, leaving a remainder of 5.
The next digit of our result is 5. 
Result so far: 2423.55
Deduct 45 from 50 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

The quotient of the division is 2423.55, and the remainder is 0.005.