We're dividing 908367 by 21 
We want to divide 908367 by 21.

Going ahead to step 1:
21 can be fit into 9 0 times, resulting in a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Take the next digit (0) from the dividend and append it to 9, then repeat: 90 / 21

Advancing to step 2:
The number 21 fits into 90 4 times, leaving a remainder of 6.
The next digit of our result is 4. 
Result so far: 4.0
If we subtract 84 from 90, we get 6.
Grab the next digit (8) from the dividend, add it to 6, then carry on: 68 / 21

Going ahead to step 3:
When dividing 68 by 21, we get 3 with a remainder of 5.
Put 3 as the next digit of the answer. 
Result so far: 43.0
Subtracting 63 from 68 leaves us with 5.
Fetch the next digit (3) from the dividend, attach it to 5 and continue: 53 / 21

Let's proceed to step 4:
The number 21 fits into 53 2 times, leaving a remainder of 11.
The number 2 becomes the next digit in our result. 
Result so far: 432.0
If we subtract 42 from 53, we get 11.
Bring next digit (6) of the dividend behind the 11 and repeat the process: 116 / 21

On to step 5:
21 goes into 116 5 times with a remainder of 11.
Put 5 as the next digit of the answer. 
Result so far: 4325.0
If we subtract 105 from 116, we get 11.
Take the next digit (7) from the dividend and append it to 11, then repeat: 117 / 21

Step 6:
21 goes into 117 5 times with a remainder of 12.
The number 5 becomes the next digit in our result. 
Result so far: 43255.0
Subtracting 105 from 117 leaves us 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 7:
If we divide 120 by 21, we get 5 and a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 43255.5
If we subtract 105 from 120, we get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 8:
The number 21 fits into 150 7 times, leaving a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 43255.57
Deduct 147 from 150 and we're left 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.

Going ahead to step 9:
21 can be fit into 30 1 times, resulting in a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 43255.571
If we subtract 21 from 30, we 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.

Advancing to step 10:
21 goes into 90 4 times with a remainder of 6.
Record the quotient 4 as the next digit in the result. 
Result so far: 43255.5714
Subtract 84 from 90 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.

Let's proceed to step 11:
60 divided by 21 is 2 with a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 43255.57142
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 12:
21 can be fit into 180 8 times, resulting in a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 43255.571428
Subtracting 168 from 180 leaves us 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 13:
21 goes into 120 5 times with a remainder of 15.
Put 5 as the next digit of the answer. 
Result so far: 43255.5714285
Subtract 105 from 120 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 14:
21 goes into 150 7 times with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 43255.57142857
Subtracting 147 from 150 leaves us 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.

In conclusion, the division gives 43255.57142857 with a balance of 3e-09.