30397 ÷ 12 
Our goal is to divide 30397 by 12.

Advancing to step 1:
When dividing 3 by 12, we get 0 with a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Take the next digit (0) from the dividend and append it to 3, then repeat: 30 / 12

Let's proceed to step 2:
30 divided by 12 is 2 with a remainder of 6.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Deduct 24 from 30 and we're left with 6.
Append the next digit (3) from the dividend to 6 and continue with: 63 / 12

Step 3:
63 divided by 12 is 5 with a remainder of 3.
The next digit of our result is 5. 
Result so far: 25.0
The remainder is 3 after subtracting 60 from 63.
Bring next digit (9) of the dividend behind the 3 and repeat the process: 39 / 12

Moving on to step 4:
When dividing 39 by 12, we get 3 with a remainder of 3.
The number 3 becomes the next digit in our result. 
Result so far: 253.0
If we take 36 away from 39, we end up with 3.
Bring next digit (7) of the dividend behind the 3 and repeat the process: 37 / 12

Step 5:
If we divide 37 by 12, we get 3 and a remainder of 1.
Put 3 as the next digit of the answer. 
Result so far: 2533.0
Deduct 36 from 37 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 6:
12 goes into 10 0 times with a remainder of 10.
The number 0 becomes the next digit in our result. 
Result so far: 2533.0
The remainder is 10 after subtracting 0 from 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 12 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 2533.08
Subtract 96 from 100 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
40 divided by 12 is 3 with a remainder of 4.
Put 3 as the next digit of the answer. 
Result so far: 2533.083
If we take 36 away from 40, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
12 goes into 40 3 times with a remainder of 4.
Write down 3 as next digit of the result. 
Result so far: 2533.0833
The remainder is 4 after subtracting 36 from 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 2533.0833 with a balance of 4e-05.