389802 ÷ 30 
We're looking to find how many times 30 goes into 389802.

Step 1:
3 divided by 30 is 0 with a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 3 and we're left with 3.
Grab the next digit (8) from the dividend, add it to 3, then carry on: 38 / 30

Advancing to step 2:
When dividing 38 by 30, we get 1 with a remainder of 8.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 30 from 38, we get 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 30

On to step 3:
30 can be fit into 89 2 times, resulting in a remainder of 29.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
The remainder is 29 after subtracting 60 from 89.
Fetch the next digit (8) from the dividend, attach it to 29 and continue: 298 / 30

Moving on to step 4:
30 goes into 298 9 times with a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 129.0
Subtract 270 from 298 to get 28.
Fetch the next digit (0) from the dividend, attach it to 28 and continue: 280 / 30

Advancing to step 5:
The number 30 fits into 280 9 times, leaving a remainder of 10.
Record the quotient 9 as the next digit in the result. 
Result so far: 1299.0
The remainder is 10 after subtracting 270 from 280.
Grab the next digit (2) from the dividend, add it to 10, then carry on: 102 / 30

Step 6:
When dividing 102 by 30, we get 3 with a remainder of 12.
Use 3 as the next digit of our solution. 
Result so far: 12993.0
If we subtract 90 from 102, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Moving on to step 7:
The number 30 fits into 120 4 times, leaving a remainder of 0.
Use 4 as the next digit of our solution. 
Result so far: 12993.4
If we subtract 120 from 120, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 8:
If we divide 0 by 30, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 12993.4
If we take 0 away from 0, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
0 divided by 30 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 12993.4
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 12993.4 with a remaining 0.0.