We divide 619303 by 30
Let's see how many times 30 fits into 619303.

On to step 1:
The number 30 fits into 6 0 times, leaving a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Take the next digit (1) from the dividend and append it to 6, then repeat: 61 / 30

On to step 2:
If we divide 61 by 30, we get 2 and a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
If we subtract 60 from 61, we get 1.
Append the next digit (9) from the dividend to 1 and continue with: 19 / 30

Advancing to step 3:
19 divided by 30 is 0 with a remainder of 19.
The next digit of our result is 0. 
Result so far: 20.0
The remainder is 19 after subtracting 0 from 19.
Take the next digit (3) from the dividend and append it to 19, then repeat: 193 / 30

On to step 4:
30 can be fit into 193 6 times, resulting in a remainder of 13.
The number 6 becomes the next digit in our result. 
Result so far: 206.0
Subtracting 180 from 193 leaves us with 13.
Include the next digit (0) from the dividend after 13, then repeat: 130 / 30

On to step 5:
When dividing 130 by 30, we get 4 with a remainder of 10.
The next digit of our result is 4. 
Result so far: 2064.0
The remainder is 10 after subtracting 120 from 130.
Take the next digit (3) from the dividend and append it to 10, then repeat: 103 / 30

Going ahead to step 6:
30 goes into 103 3 times with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 20643.0
The remainder is 13 after subtracting 90 from 103.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Step 7:
130 divided by 30 is 4 with a remainder of 10.
Put 4 as the next digit of the answer. 
Result so far: 20643.4
The remainder is 10 after subtracting 120 from 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

On to step 8:
If we divide 100 by 30, we get 3 and a remainder of 10.
The next digit of our result is 3. 
Result so far: 20643.43
If we take 90 away from 100, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Use 3 as the next digit of our solution. 
Result so far: 20643.433
Deduct 90 from 100 and we're left with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

The final result is 20643.433 with a remainder of 0.001.