646331 ÷ 30 
Let's see how many times 30 fits into 646331.

Going ahead to step 1:
30 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 30

On to step 2:
30 goes into 64 2 times with a remainder of 4.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 60 away from 64, we end up with 4.
Include the next digit (6) from the dividend after 4, then repeat: 46 / 30

Going ahead to step 3:
30 can be fit into 46 1 times, resulting in a remainder of 16.
Record the quotient 1 as the next digit in the result. 
Result so far: 21.0
If we take 30 away from 46, we end up with 16.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 30

On to step 4:
When dividing 163 by 30, we get 5 with a remainder of 13.
Put 5 as the next digit of the answer. 
Result so far: 215.0
Deduct 150 from 163 and we're left with 13.
Fetch the next digit (3) from the dividend, attach it to 13 and continue: 133 / 30

Advancing to step 5:
When dividing 133 by 30, we get 4 with a remainder of 13.
Use 4 as the next digit of our solution. 
Result so far: 2154.0
The remainder is 13 after subtracting 120 from 133.
Append the next digit (1) from the dividend to 13 and continue with: 131 / 30

Moving on to step 6:
When dividing 131 by 30, we get 4 with a remainder of 11.
Write down 4 as next digit of the result. 
Result so far: 21544.0
Subtracting 120 from 131 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
30 can be fit into 110 3 times, resulting in a remainder of 20.
Use 3 as the next digit of our solution. 
Result so far: 21544.3
If we subtract 90 from 110, we get 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
If we divide 200 by 30, we get 6 and a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 21544.36
Deduct 180 from 200 and we're left with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 9:
When dividing 200 by 30, we get 6 with a remainder of 20.
Record the quotient 6 as the next digit in the result. 
Result so far: 21544.366
The remainder is 20 after subtracting 180 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

After the division, we end up with 21544.366 and a remainder of 0.002.