We're dividing 12077768 by 915 
Let's see how many times 915 fits into 12077768.

Step 1:
When dividing 1 by 915, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 915

Going ahead to step 2:
915 goes into 12 0 times with a remainder of 12.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Fetch the next digit (0) from the dividend, attach it to 12 and continue: 120 / 915

Going ahead to step 3:
If we divide 120 by 915, we get 0 and a remainder of 120.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 120, we get 120.
Include the next digit (7) from the dividend after 120, then repeat: 1207 / 915

Step 4:
The number 915 fits into 1207 1 times, leaving a remainder of 292.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 915 from 1207 and we're left with 292.
Include the next digit (7) from the dividend after 292, then repeat: 2927 / 915

On to step 5:
When dividing 2927 by 915, we get 3 with a remainder of 182.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we subtract 2745 from 2927, we get 182.
Bring next digit (7) of the dividend behind the 182 and repeat the process: 1827 / 915

Moving on to step 6:
915 can be fit into 1827 1 times, resulting in a remainder of 912.
Use 1 as the next digit of our solution. 
Result so far: 131.0
If we take 915 away from 1827, we end up with 912.
Take the next digit (6) from the dividend and append it to 912, then repeat: 9126 / 915

Going ahead to step 7:
The number 915 fits into 9126 9 times, leaving a remainder of 891.
The next digit of our result is 9. 
Result so far: 1319.0
Subtract 8235 from 9126 to get 891.
Append the next digit (8) from the dividend to 891 and continue with: 8918 / 915

Step 8:
The number 915 fits into 8918 9 times, leaving a remainder of 683.
The number 9 becomes the next digit in our result. 
Result so far: 13199.0
The remainder is 683 after subtracting 8235 from 8918.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6830, and continue the process.

Going ahead to step 9:
When dividing 6830 by 915, we get 7 with a remainder of 425.
Record the quotient 7 as the next digit in the result. 
Result so far: 13199.7
Deduct 6405 from 6830 and we're left with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

Moving on to step 10:
4250 divided by 915 is 4 with a remainder of 590.
The next digit of our result is 4. 
Result so far: 13199.74
Subtract 3660 from 4250 to get 590.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5900, and continue the process.

On to step 11:
915 goes into 5900 6 times with a remainder of 410.
Put 6 as the next digit of the answer. 
Result so far: 13199.746
Subtract 5490 from 5900 to get 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

Advancing to step 12:
When dividing 4100 by 915, we get 4 with a remainder of 440.
The next digit of our result is 4. 
Result so far: 13199.7464
Deduct 3660 from 4100 and we're left with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Step 13:
When dividing 4400 by 915, we get 4 with a remainder of 740.
Use 4 as the next digit of our solution. 
Result so far: 13199.74644
Subtract 3660 from 4400 to get 740.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7400, and continue the process.

The final result is 13199.74644 with a remainder of 0.00074.