We divide 217350 by 21
Our goal is to divide 217350 by 21.

Going ahead to step 1:
If we divide 2 by 21, we get 0 and a remainder of 2.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 2, we get 2.
Grab the next digit (1) from the dividend, add it to 2, then carry on: 21 / 21

On to step 2:
21 can be fit into 21 1 times, resulting in a remainder of 0.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 21 from 21 and we're left with 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 21

Going ahead to step 3:
The number 21 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 10.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (3) from the dividend and append it to 7, then repeat: 73 / 21

Let's proceed to step 4:
The number 21 fits into 73 3 times, leaving a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 103.0
Subtracting 63 from 73 leaves us with 10.
Append the next digit (5) from the dividend to 10 and continue with: 105 / 21

On to step 5:
21 can be fit into 105 5 times, resulting in a remainder of 0.
Put 5 as the next digit of the answer. 
Result so far: 1035.0
Subtracting 105 from 105 leaves us with 0.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 21

On to step 6:
21 goes into 0 0 times with a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10350.0
Deduct 0 from 0 and we're left 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:
21 can be fit into 0 0 times, resulting in a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 10350.0
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.

Step 8:
The number 21 fits into 0 0 times, leaving a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 10350.0
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.

The quotient of the division is 10350.0, and the remainder is 0.0.