Let's divide 643409 by 30
We want to divide 643409 by 30.

Moving on to step 1:
30 can be fit into 6 0 times, resulting in a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Append the next digit (4) from the dividend to 6 and continue with: 64 / 30

Going ahead to step 2:
30 can be fit into 64 2 times, resulting in a remainder of 4.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 4 after subtracting 60 from 64.
Take the next digit (3) from the dividend and append it to 4, then repeat: 43 / 30

On to step 3:
The number 30 fits into 43 1 times, leaving a remainder of 13.
Write down 1 as next digit of the result. 
Result so far: 21.0
If we take 30 away from 43, we end up with 13.
Append the next digit (4) from the dividend to 13 and continue with: 134 / 30

Going ahead to step 4:
The number 30 fits into 134 4 times, leaving a remainder of 14.
Record the quotient 4 as the next digit in the result. 
Result so far: 214.0
The remainder is 14 after subtracting 120 from 134.
Include the next digit (0) from the dividend after 14, then repeat: 140 / 30

Let's proceed to step 5:
The number 30 fits into 140 4 times, leaving a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 2144.0
Deduct 120 from 140 and we're left with 20.
Append the next digit (9) from the dividend to 20 and continue with: 209 / 30

On to step 6:
30 goes into 209 6 times with a remainder of 29.
Put 6 as the next digit of the answer. 
Result so far: 21446.0
Deduct 180 from 209 and we're left with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 7:
30 can be fit into 290 9 times, resulting in a remainder of 20.
Use 9 as the next digit of our solution. 
Result so far: 21446.9
Deduct 270 from 290 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.

Moving on to step 8:
30 goes into 200 6 times with a remainder of 20.
Write down 6 as next digit of the result. 
Result so far: 21446.96
If we subtract 180 from 200, 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.

On to step 9:
200 divided by 30 is 6 with a remainder of 20.
The next digit of our result is 6. 
Result so far: 21446.966
If we subtract 180 from 200, 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.

In conclusion, the division gives 21446.966 with a balance of 0.002.