We're dividing 307491 by 12 
We're looking to find how many times 12 goes into 307491.

Step 1:
When dividing 3 by 12, we get 0 with a remainder of 3.
Use 0 as the next digit of our solution. 
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

Advancing to step 2:
If we divide 30 by 12, we get 2 and a remainder of 6.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Subtracting 24 from 30 leaves us with 6.
Take the next digit (7) from the dividend and append it to 6, then repeat: 67 / 12

Going ahead to step 3:
67 divided by 12 is 5 with a remainder of 7.
Record the quotient 5 as the next digit in the result. 
Result so far: 25.0
The remainder is 7 after subtracting 60 from 67.
Take the next digit (4) from the dividend and append it to 7, then repeat: 74 / 12

On to step 4:
12 goes into 74 6 times with a remainder of 2.
The number 6 becomes the next digit in our result. 
Result so far: 256.0
Subtracting 72 from 74 leaves us with 2.
Append the next digit (9) from the dividend to 2 and continue with: 29 / 12

Step 5:
When dividing 29 by 12, we get 2 with a remainder of 5.
Put 2 as the next digit of the answer. 
Result so far: 2562.0
The remainder is 5 after subtracting 24 from 29.
Grab the next digit (1) from the dividend, add it to 5, then carry on: 51 / 12

Step 6:
The number 12 fits into 51 4 times, leaving a remainder of 3.
The next digit of our result is 4. 
Result so far: 25624.0
Subtracting 48 from 51 leaves us with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 7:
If we divide 30 by 12, we get 2 and a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 25624.2
Subtracting 24 from 30 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 8:
60 divided by 12 is 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 25624.25
Subtracting 60 from 60 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.

Advancing to step 9:
When dividing 0 by 12, we get 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 25624.25
Subtract 0 from 0 to 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.

Going ahead to step 10:
12 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 25624.25
If we subtract 0 from 0, 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.

The final result is 25624.25 with a remainder of 0.0.