603400 divided by 30 
We want to figure out the number of times 603400 can be divided by 30.

Step 1:
If we divide 6 by 30, we get 0 and a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Include the next digit (0) from the dividend after 6, then repeat: 60 / 30

Step 2:
30 goes into 60 2 times with a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 2.0
Subtracting 60 from 60 leaves us with 0.
Take the next digit (3) from the dividend and append it to 0, then repeat: 3 / 30

Moving on to step 3:
30 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 20.0
Subtract 0 from 3 to get 3.
Include the next digit (4) from the dividend after 3, then repeat: 34 / 30

On to step 4:
30 can be fit into 34 1 times, resulting in a remainder of 4.
Use 1 as the next digit of our solution. 
Result so far: 201.0
Subtracting 30 from 34 leaves us with 4.
Fetch the next digit (0) from the dividend, attach it to 4 and continue: 40 / 30

Moving on to step 5:
The number 30 fits into 40 1 times, leaving a remainder of 10.
Put 1 as the next digit of the answer. 
Result so far: 2011.0
Subtracting 30 from 40 leaves us with 10.
Bring next digit (0) of the dividend behind the 10 and repeat the process: 100 / 30

Advancing to step 6:
The number 30 fits into 100 3 times, leaving a remainder of 10.
The number 3 becomes the next digit in our result. 
Result so far: 20113.0
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.

On to step 7:
100 divided by 30 is 3 with a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 20113.3
Subtracting 90 from 100 leaves us 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 8:
30 can be fit into 100 3 times, resulting in a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 20113.33
Subtract 90 from 100 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

After the division, we end up with 20113.33 and a remainder of 0.01.