12278115 ÷ 773 
Let's see how many times 773 fits into 12278115.

Moving on to step 1:
When dividing 1 by 773, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 773

On to step 2:
The number 773 fits into 12 0 times, leaving a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 12 after subtracting 0 from 12.
Grab the next digit (2) from the dividend, add it to 12, then carry on: 122 / 773

Moving on to step 3:
122 divided by 773 is 0 with a remainder of 122.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 122 and we're left with 122.
Take the next digit (7) from the dividend and append it to 122, then repeat: 1227 / 773

Going ahead to step 4:
1227 divided by 773 is 1 with a remainder of 454.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 773 from 1227, we get 454.
Grab the next digit (8) from the dividend, add it to 454, then carry on: 4548 / 773

Moving on to step 5:
773 goes into 4548 5 times with a remainder of 683.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we take 3865 away from 4548, we end up with 683.
Bring next digit (1) of the dividend behind the 683 and repeat the process: 6831 / 773

Advancing to step 6:
6831 divided by 773 is 8 with a remainder of 647.
Write down 8 as next digit of the result. 
Result so far: 158.0
If we take 6184 away from 6831, we end up with 647.
Grab the next digit (1) from the dividend, add it to 647, then carry on: 6471 / 773

Going ahead to step 7:
6471 divided by 773 is 8 with a remainder of 287.
The number 8 becomes the next digit in our result. 
Result so far: 1588.0
The remainder is 287 after subtracting 6184 from 6471.
Fetch the next digit (5) from the dividend, attach it to 287 and continue: 2875 / 773

Going ahead to step 8:
If we divide 2875 by 773, we get 3 and a remainder of 556.
The next digit of our result is 3. 
Result so far: 15883.0
If we subtract 2319 from 2875, we get 556.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5560, and continue the process.

Moving on to step 9:
When dividing 5560 by 773, we get 7 with a remainder of 149.
Record the quotient 7 as the next digit in the result. 
Result so far: 15883.7
Subtract 5411 from 5560 to get 149.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1490, and continue the process.

Step 10:
The number 773 fits into 1490 1 times, leaving a remainder of 717.
Record the quotient 1 as the next digit in the result. 
Result so far: 15883.71
Subtract 773 from 1490 to get 717.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7170, and continue the process.

Let's proceed to step 11:
773 goes into 7170 9 times with a remainder of 213.
Use 9 as the next digit of our solution. 
Result so far: 15883.719
If we subtract 6957 from 7170, we get 213.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2130, and continue the process.

Step 12:
The number 773 fits into 2130 2 times, leaving a remainder of 584.
Write down 2 as next digit of the result. 
Result so far: 15883.7192
Deduct 1546 from 2130 and we're left with 584.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5840, and continue the process.

Step 13:
If we divide 5840 by 773, we get 7 and a remainder of 429.
Put 7 as the next digit of the answer. 
Result so far: 15883.71927
The remainder is 429 after subtracting 5411 from 5840.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4290, and continue the process.

Moving on to step 14:
If we divide 4290 by 773, we get 5 and a remainder of 425.
Put 5 as the next digit of the answer. 
Result so far: 15883.719275
Subtracting 3865 from 4290 leaves us 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.

Let's proceed to step 15:
If we divide 4250 by 773, we get 5 and a remainder of 385.
The next digit of our result is 5. 
Result so far: 15883.7192755
If we subtract 3865 from 4250, we get 385.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3850, and continue the process.

The quotient of the division is 15883.7192755, and the remainder is 3.85e-06.