We're dividing 815249 by 77 
Our goal is to divide 815249 by 77.

On to step 1:
If we divide 8 by 77, we get 0 and a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 77

On to step 2:
81 divided by 77 is 1 with a remainder of 4.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 77 from 81, we get 4.
Bring next digit (5) of the dividend behind the 4 and repeat the process: 45 / 77

Advancing to step 3:
If we divide 45 by 77, we get 0 and a remainder of 45.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 45 and we're left with 45.
Bring next digit (2) of the dividend behind the 45 and repeat the process: 452 / 77

Step 4:
77 goes into 452 5 times with a remainder of 67.
Put 5 as the next digit of the answer. 
Result so far: 105.0
Subtracting 385 from 452 leaves us with 67.
Grab the next digit (4) from the dividend, add it to 67, then carry on: 674 / 77

Step 5:
77 goes into 674 8 times with a remainder of 58.
The number 8 becomes the next digit in our result. 
Result so far: 1058.0
Subtracting 616 from 674 leaves us with 58.
Include the next digit (9) from the dividend after 58, then repeat: 589 / 77

Moving on to step 6:
If we divide 589 by 77, we get 7 and a remainder of 50.
Record the quotient 7 as the next digit in the result. 
Result so far: 10587.0
Subtracting 539 from 589 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

On to step 7:
77 goes into 500 6 times with a remainder of 38.
Use 6 as the next digit of our solution. 
Result so far: 10587.6
If we subtract 462 from 500, we get 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Advancing to step 8:
The number 77 fits into 380 4 times, leaving a remainder of 72.
Use 4 as the next digit of our solution. 
Result so far: 10587.64
Deduct 308 from 380 and we're left with 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

Moving on to step 9:
If we divide 720 by 77, we get 9 and a remainder of 27.
Use 9 as the next digit of our solution. 
Result so far: 10587.649
If we subtract 693 from 720, we get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 10:
The number 77 fits into 270 3 times, leaving a remainder of 39.
The next digit of our result is 3. 
Result so far: 10587.6493
The remainder is 39 after subtracting 231 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

Step 11:
77 goes into 390 5 times with a remainder of 5.
Put 5 as the next digit of the answer. 
Result so far: 10587.64935
If we take 385 away from 390, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 12:
When dividing 50 by 77, we get 0 with a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 10587.64935
Subtracting 0 from 50 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
The number 77 fits into 500 6 times, leaving a remainder of 38.
Put 6 as the next digit of the answer. 
Result so far: 10587.6493506
If we take 462 away from 500, we end up with 38.
Since there are no more digits in the dividend, we add a zero to the remainder making it 380, and continue the process.

Let's proceed to step 14:
380 divided by 77 is 4 with a remainder of 72.
The next digit of our result is 4. 
Result so far: 10587.64935064
If we subtract 308 from 380, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 10587.64935064 and a remainder of 7.2e-08.