We divide 684586 by 21
We want to divide 684586 by 21.

Step 1:
If we divide 6 by 21, we get 0 and a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (8) from the dividend, attach it to 6 and continue: 68 / 21

Going ahead to step 2:
If we divide 68 by 21, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 3.0
Subtracting 63 from 68 leaves us with 5.
Include the next digit (4) from the dividend after 5, then repeat: 54 / 21

Going ahead to step 3:
54 divided by 21 is 2 with a remainder of 12.
Put 2 as the next digit of the answer. 
Result so far: 32.0
Subtract 42 from 54 to get 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 21

Going ahead to step 4:
21 can be fit into 125 5 times, resulting in a remainder of 20.
The number 5 becomes the next digit in our result. 
Result so far: 325.0
Subtract 105 from 125 to get 20.
Append the next digit (8) from the dividend to 20 and continue with: 208 / 21

Going ahead to step 5:
208 divided by 21 is 9 with a remainder of 19.
Put 9 as the next digit of the answer. 
Result so far: 3259.0
The remainder is 19 after subtracting 189 from 208.
Include the next digit (6) from the dividend after 19, then repeat: 196 / 21

Let's proceed to step 6:
When dividing 196 by 21, we get 9 with a remainder of 7.
Put 9 as the next digit of the answer. 
Result so far: 32599.0
Subtracting 189 from 196 leaves us with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 7:
70 divided by 21 is 3 with a remainder of 7.
Put 3 as the next digit of the answer. 
Result so far: 32599.3
If we take 63 away from 70, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

On to step 8:
The number 21 fits into 70 3 times, leaving a remainder of 7.
Use 3 as the next digit of our solution. 
Result so far: 32599.33
If we take 63 away from 70, we end up with 7.
Since there are no more digits in the dividend, we add a zero to the remainder making it 70, and continue the process.

The quotient of the division is 32599.33, and the remainder is 0.007.