717906 divided by 21 
We want to divide 717906 by 21.

Moving on to step 1:
7 divided by 21 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Take the next digit (1) from the dividend and append it to 7, then repeat: 71 / 21

Going ahead to step 2:
21 goes into 71 3 times with a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 63 from 71, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 21

Advancing to step 3:
87 divided by 21 is 4 with a remainder of 3.
Write down 4 as next digit of the result. 
Result so far: 34.0
Subtracting 84 from 87 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 21

Advancing to step 4:
When dividing 39 by 21, we get 1 with a remainder of 18.
Put 1 as the next digit of the answer. 
Result so far: 341.0
If we subtract 21 from 39, we get 18.
Include the next digit (0) from the dividend after 18, then repeat: 180 / 21

Moving on to step 5:
21 goes into 180 8 times with a remainder of 12.
The number 8 becomes the next digit in our result. 
Result so far: 3418.0
Subtract 168 from 180 to get 12.
Bring next digit (6) of the dividend behind the 12 and repeat the process: 126 / 21

Moving on to step 6:
When dividing 126 by 21, we get 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 34186.0
If we subtract 126 from 126, we 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.

Moving on to step 7:
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: 34186.0
Subtracting 0 from 0 leaves us 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.

Moving on to step 8:
21 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 34186.0
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.

Our division results in 34186.0 with a remaining 0.0.