We're dividing 649224 by 21 
We're looking to find how many times 21 goes into 649224.

Let's proceed to step 1:
6 divided by 21 is 0 with a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 21

Let's proceed to step 2:
21 goes into 64 3 times with a remainder of 1.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we take 63 away from 64, we end up with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 21

Advancing to step 3:
The number 21 fits into 19 0 times, leaving a remainder of 19.
Record the quotient 0 as the next digit in the result. 
Result so far: 30.0
Deduct 0 from 19 and we're left with 19.
Append the next digit (2) from the dividend to 19 and continue with: 192 / 21

On to step 4:
21 can be fit into 192 9 times, resulting in a remainder of 3.
Use 9 as the next digit of our solution. 
Result so far: 309.0
If we take 189 away from 192, we end up with 3.
Fetch the next digit (2) from the dividend, attach it to 3 and continue: 32 / 21

Step 5:
If we divide 32 by 21, we get 1 and a remainder of 11.
Put 1 as the next digit of the answer. 
Result so far: 3091.0
The remainder is 11 after subtracting 21 from 32.
Include the next digit (4) from the dividend after 11, then repeat: 114 / 21

Moving on to step 6:
The number 21 fits into 114 5 times, leaving a remainder of 9.
Use 5 as the next digit of our solution. 
Result so far: 30915.0
Subtract 105 from 114 to get 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
When dividing 90 by 21, we get 4 with a remainder of 6.
Put 4 as the next digit of the answer. 
Result so far: 30915.4
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
60 divided by 21 is 2 with a remainder of 18.
The number 2 becomes the next digit in our result. 
Result so far: 30915.42
Subtract 42 from 60 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Advancing to step 9:
The number 21 fits into 180 8 times, leaving a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 30915.428
Deduct 168 from 180 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

On to step 10:
If we divide 120 by 21, we get 5 and a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 30915.4285
Deduct 105 from 120 and we're left with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Going ahead to step 11:
If we divide 150 by 21, we get 7 and a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 30915.42857
If we take 147 away from 150, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 12:
When dividing 30 by 21, we get 1 with a remainder of 9.
Put 1 as the next digit of the answer. 
Result so far: 30915.428571
The remainder is 9 after subtracting 21 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 13:
When dividing 90 by 21, we get 4 with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 30915.4285714
The remainder is 6 after subtracting 84 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 14:
21 can be fit into 60 2 times, resulting in a remainder of 18.
Use 2 as the next digit of our solution. 
Result so far: 30915.42857142
Subtract 42 from 60 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

In conclusion, the division gives 30915.42857142 with a balance of 1.8e-08.