We look at the division of 392900 by 30 
We're looking to find how many times 30 goes into 392900.

Let's proceed to step 1:
The number 30 fits into 3 0 times, leaving a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 3 leaves us with 3.
Include the next digit (9) from the dividend after 3, then repeat: 39 / 30

Advancing to step 2:
When dividing 39 by 30, we get 1 with a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtracting 30 from 39 leaves us with 9.
Grab the next digit (2) from the dividend, add it to 9, then carry on: 92 / 30

Step 3:
30 goes into 92 3 times with a remainder of 2.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 90 away from 92, we end up with 2.
Fetch the next digit (9) from the dividend, attach it to 2 and continue: 29 / 30

Moving on to step 4:
If we divide 29 by 30, we get 0 and a remainder of 29.
Put 0 as the next digit of the answer. 
Result so far: 130.0
Deduct 0 from 29 and we're left with 29.
Grab the next digit (0) from the dividend, add it to 29, then carry on: 290 / 30

Going ahead to step 5:
30 goes into 290 9 times with a remainder of 20.
Write down 9 as next digit of the result. 
Result so far: 1309.0
If we take 270 away from 290, we end up with 20.
Bring next digit (0) of the dividend behind the 20 and repeat the process: 200 / 30

Let's proceed to step 6:
The number 30 fits into 200 6 times, leaving a remainder of 20.
Use 6 as the next digit of our solution. 
Result so far: 13096.0
Subtract 180 from 200 to 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.

Advancing to step 7:
The number 30 fits into 200 6 times, leaving a remainder of 20.
The number 6 becomes the next digit in our result. 
Result so far: 13096.6
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.

Advancing to step 8:
200 divided by 30 is 6 with a remainder of 20.
Put 6 as the next digit of the answer. 
Result so far: 13096.66
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.

The final result is 13096.66 with a remainder of 0.02.