We divide 21966 by 9
Our goal is to divide 21966 by 9.

On to step 1:
The number 9 fits into 2 0 times, leaving a remainder of 2.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Fetch the next digit (1) from the dividend, attach it to 2 and continue: 21 / 9

Advancing to step 2:
If we divide 21 by 9, we get 2 and a remainder of 3.
Use 2 as the next digit of our solution. 
Result so far: 2.0
The remainder is 3 after subtracting 18 from 21.
Grab the next digit (9) from the dividend, add it to 3, then carry on: 39 / 9

Going ahead to step 3:
9 can be fit into 39 4 times, resulting in a remainder of 3.
Put 4 as the next digit of the answer. 
Result so far: 24.0
The remainder is 3 after subtracting 36 from 39.
Bring next digit (6) of the dividend behind the 3 and repeat the process: 36 / 9

Step 4:
When dividing 36 by 9, we get 4 with a remainder of 0.
The next digit of our result is 4. 
Result so far: 244.0
Subtract 36 from 36 to get 0.
Append the next digit (6) from the dividend to 0 and continue with: 6 / 9

Step 5:
The number 9 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 2440.0
The remainder is 6 after subtracting 0 from 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 6:
When dividing 60 by 9, we get 6 with a remainder of 6.
Put 6 as the next digit of the answer. 
Result so far: 2440.6
If we subtract 54 from 60, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
When dividing 60 by 9, we get 6 with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 2440.66
Subtract 54 from 60 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

After the division, we end up with 2440.66 and a remainder of 0.006.