We're dividing 12938834 by 308 
We're looking to find how many times 308 goes into 12938834.

Advancing to step 1:
The number 308 fits into 1 0 times, leaving a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 308

Advancing to step 2:
If we divide 12 by 308, we get 0 and a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 12 to get 12.
Append the next digit (9) from the dividend to 12 and continue with: 129 / 308

Moving on to step 3:
308 goes into 129 0 times with a remainder of 129.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 129 to get 129.
Take the next digit (3) from the dividend and append it to 129, then repeat: 1293 / 308

On to step 4:
1293 divided by 308 is 4 with a remainder of 61.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we take 1232 away from 1293, we end up with 61.
Grab the next digit (8) from the dividend, add it to 61, then carry on: 618 / 308

Advancing to step 5:
308 can be fit into 618 2 times, resulting in a remainder of 2.
Put 2 as the next digit of the answer. 
Result so far: 42.0
If we subtract 616 from 618, we get 2.
Fetch the next digit (8) from the dividend, attach it to 2 and continue: 28 / 308

Step 6:
308 can be fit into 28 0 times, resulting in a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 420.0
Subtracting 0 from 28 leaves us with 28.
Append the next digit (3) from the dividend to 28 and continue with: 283 / 308

Step 7:
The number 308 fits into 283 0 times, leaving a remainder of 283.
Record the quotient 0 as the next digit in the result. 
Result so far: 4200.0
Subtract 0 from 283 to get 283.
Include the next digit (4) from the dividend after 283, then repeat: 2834 / 308

Going ahead to step 8:
When dividing 2834 by 308, we get 9 with a remainder of 62.
Put 9 as the next digit of the answer. 
Result so far: 42009.0
Subtract 2772 from 2834 to get 62.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 9:
If we divide 620 by 308, we get 2 and a remainder of 4.
Use 2 as the next digit of our solution. 
Result so far: 42009.2
If we subtract 616 from 620, we 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.

Advancing to step 10:
308 can be fit into 40 0 times, resulting in a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 42009.2
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 11:
308 goes into 400 1 times with a remainder of 92.
Record the quotient 1 as the next digit in the result. 
Result so far: 42009.201
Deduct 308 from 400 and we're left with 92.
Since there are no more digits in the dividend, we add a zero to the remainder making it 920, and continue the process.

Let's proceed to step 12:
920 divided by 308 is 2 with a remainder of 304.
Write down 2 as next digit of the result. 
Result so far: 42009.2012
If we take 616 away from 920, we end up with 304.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3040, and continue the process.

Advancing to step 13:
When dividing 3040 by 308, we get 9 with a remainder of 268.
Put 9 as the next digit of the answer. 
Result so far: 42009.20129
Deduct 2772 from 3040 and we're left with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Moving on to step 14:
308 can be fit into 2680 8 times, resulting in a remainder of 216.
Use 8 as the next digit of our solution. 
Result so far: 42009.201298
The remainder is 216 after subtracting 2464 from 2680.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

On to step 15:
308 can be fit into 2160 7 times, resulting in a remainder of 4.
Write down 7 as next digit of the result. 
Result so far: 42009.2012987
If we subtract 2156 from 2160, we 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.

On to step 16:
40 divided by 308 is 0 with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 42009.2012987
Subtracting 0 from 40 leaves us with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

In conclusion, the division gives 42009.2012987 with a balance of 4e-08.