We're dividing 21492879 by 9 
We're looking to find how many times 9 goes into 21492879.

Going ahead to step 1:
2 divided by 9 is 0 with a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 9

Let's proceed to step 2:
9 can be fit into 21 2 times, resulting in a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 2.0
Deduct 18 from 21 and we're left with 3.
Grab the next digit (4) from the dividend, add it to 3, then carry on: 34 / 9

On to step 3:
When dividing 34 by 9, we get 3 with a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 23.0
If we subtract 27 from 34, we get 7.
Grab the next digit (9) from the dividend, add it to 7, then carry on: 79 / 9

Going ahead to step 4:
79 divided by 9 is 8 with a remainder of 7.
The next digit of our result is 8. 
Result so far: 238.0
Deduct 72 from 79 and we're left with 7.
Bring next digit (2) of the dividend behind the 7 and repeat the process: 72 / 9

On to step 5:
When dividing 72 by 9, we get 8 with a remainder of 0.
The next digit of our result is 8. 
Result so far: 2388.0
If we take 72 away from 72, we end up with 0.
Grab the next digit (8) from the dividend, add it to 0, then carry on: 8 / 9

Let's proceed to step 6:
If we divide 8 by 9, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 23880.0
The remainder is 8 after subtracting 0 from 8.
Include the next digit (7) from the dividend after 8, then repeat: 87 / 9

Going ahead to step 7:
9 goes into 87 9 times with a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 238809.0
Subtract 81 from 87 to get 6.
Append the next digit (9) from the dividend to 6 and continue with: 69 / 9

Moving on to step 8:
If we divide 69 by 9, we get 7 and a remainder of 6.
The next digit of our result is 7. 
Result so far: 2388097.0
Deduct 63 from 69 and we're left with 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 9:
The number 9 fits into 60 6 times, leaving a remainder of 6.
The next digit of our result is 6. 
Result so far: 2388097.6
If we take 54 away from 60, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

On to step 10:
If we divide 60 by 9, we get 6 and a remainder of 6.
The next digit of our result is 6. 
Result so far: 2388097.66
Deduct 54 from 60 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

The final result is 2388097.66 with a remainder of 0.006.