We divide 904680 by 21
We're looking to find how many times 21 goes into 904680.

Advancing to step 1:
21 goes into 9 0 times with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 9 after subtracting 0 from 9.
Bring next digit (0) of the dividend behind the 9 and repeat the process: 90 / 21

Advancing to step 2:
21 goes into 90 4 times with a remainder of 6.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
Deduct 84 from 90 and we're left with 6.
Grab the next digit (4) from the dividend, add it to 6, then carry on: 64 / 21

Going ahead to step 3:
21 can be fit into 64 3 times, resulting in a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 43.0
If we subtract 63 from 64, we get 1.
Append the next digit (6) from the dividend to 1 and continue with: 16 / 21

Going ahead to step 4:
The number 21 fits into 16 0 times, leaving a remainder of 16.
Record the quotient 0 as the next digit in the result. 
Result so far: 430.0
If we subtract 0 from 16, we get 16.
Take the next digit (8) from the dividend and append it to 16, then repeat: 168 / 21

Step 5:
21 can be fit into 168 8 times, resulting in a remainder of 0.
Put 8 as the next digit of the answer. 
Result so far: 4308.0
Deduct 168 from 168 and we're left with 0.
Grab the next digit (0) from the dividend, add it to 0, then carry on: 0 / 21

Going ahead to step 6:
If we divide 0 by 21, we get 0 and a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 43080.0
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 7:
0 divided by 21 is 0 with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 43080.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
21 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 43080.0
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 43080.0 with a remaining 0.0.