We're dividing 878249 by 77 
We want to figure out the number of times 878249 can be divided by 77.

Going ahead to step 1:
77 goes into 8 0 times with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 77

Advancing to step 2:
If we divide 87 by 77, we get 1 and a remainder of 10.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 77 from 87, we get 10.
Append the next digit (8) from the dividend to 10 and continue with: 108 / 77

Let's proceed to step 3:
77 goes into 108 1 times with a remainder of 31.
Use 1 as the next digit of our solution. 
Result so far: 11.0
The remainder is 31 after subtracting 77 from 108.
Include the next digit (2) from the dividend after 31, then repeat: 312 / 77

Step 4:
The number 77 fits into 312 4 times, leaving a remainder of 4.
Record the quotient 4 as the next digit in the result. 
Result so far: 114.0
Deduct 308 from 312 and we're left with 4.
Include the next digit (4) from the dividend after 4, then repeat: 44 / 77

Moving on to step 5:
44 divided by 77 is 0 with a remainder of 44.
The number 0 becomes the next digit in our result. 
Result so far: 1140.0
Subtracting 0 from 44 leaves us with 44.
Grab the next digit (9) from the dividend, add it to 44, then carry on: 449 / 77

Going ahead to step 6:
77 goes into 449 5 times with a remainder of 64.
The number 5 becomes the next digit in our result. 
Result so far: 11405.0
Deduct 385 from 449 and we're left with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 7:
640 divided by 77 is 8 with a remainder of 24.
Record the quotient 8 as the next digit in the result. 
Result so far: 11405.8
If we take 616 away from 640, we end up with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 8:
If we divide 240 by 77, we get 3 and a remainder of 9.
Record the quotient 3 as the next digit in the result. 
Result so far: 11405.83
Subtracting 231 from 240 leaves us with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Advancing to step 9:
The number 77 fits into 90 1 times, leaving a remainder of 13.
The number 1 becomes the next digit in our result. 
Result so far: 11405.831
The remainder is 13 after subtracting 77 from 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 10:
The number 77 fits into 130 1 times, leaving a remainder of 53.
Use 1 as the next digit of our solution. 
Result so far: 11405.8311
Deduct 77 from 130 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Our division results in 11405.8311 with a remaining 0.00053.