78980276 ÷ 878 
We want to divide 78980276 by 878.

On to step 1:
If we divide 7 by 878, we get 0 and a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 878

Moving on to step 2:
If we divide 78 by 878, we get 0 and a remainder of 78.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Take the next digit (9) from the dividend and append it to 78, then repeat: 789 / 878

Step 3:
789 divided by 878 is 0 with a remainder of 789.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 789 to get 789.
Append the next digit (8) from the dividend to 789 and continue with: 7898 / 878

Step 4:
7898 divided by 878 is 8 with a remainder of 874.
Put 8 as the next digit of the answer. 
Result so far: 8.0
The remainder is 874 after subtracting 7024 from 7898.
Grab the next digit (0) from the dividend, add it to 874, then carry on: 8740 / 878

Step 5:
The number 878 fits into 8740 9 times, leaving a remainder of 838.
The number 9 becomes the next digit in our result. 
Result so far: 89.0
Subtracting 7902 from 8740 leaves us with 838.
Grab the next digit (2) from the dividend, add it to 838, then carry on: 8382 / 878

On to step 6:
878 goes into 8382 9 times with a remainder of 480.
The number 9 becomes the next digit in our result. 
Result so far: 899.0
If we take 7902 away from 8382, we end up with 480.
Append the next digit (7) from the dividend to 480 and continue with: 4807 / 878

Going ahead to step 7:
When dividing 4807 by 878, we get 5 with a remainder of 417.
Record the quotient 5 as the next digit in the result. 
Result so far: 8995.0
If we subtract 4390 from 4807, we get 417.
Grab the next digit (6) from the dividend, add it to 417, then carry on: 4176 / 878

Advancing to step 8:
4176 divided by 878 is 4 with a remainder of 664.
Use 4 as the next digit of our solution. 
Result so far: 89954.0
If we subtract 3512 from 4176, we get 664.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6640, and continue the process.

On to step 9:
If we divide 6640 by 878, we get 7 and a remainder of 494.
The number 7 becomes the next digit in our result. 
Result so far: 89954.7
If we subtract 6146 from 6640, we get 494.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Going ahead to step 10:
When dividing 4940 by 878, we get 5 with a remainder of 550.
Put 5 as the next digit of the answer. 
Result so far: 89954.75
If we subtract 4390 from 4940, we get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Moving on to step 11:
5500 divided by 878 is 6 with a remainder of 232.
The number 6 becomes the next digit in our result. 
Result so far: 89954.756
The remainder is 232 after subtracting 5268 from 5500.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Moving on to step 12:
If we divide 2320 by 878, we get 2 and a remainder of 564.
The number 2 becomes the next digit in our result. 
Result so far: 89954.7562
Subtracting 1756 from 2320 leaves us with 564.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5640, and continue the process.

Step 13:
878 goes into 5640 6 times with a remainder of 372.
Use 6 as the next digit of our solution. 
Result so far: 89954.75626
Deduct 5268 from 5640 and we're left with 372.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3720, and continue the process.

Let's proceed to step 14:
878 goes into 3720 4 times with a remainder of 208.
The next digit of our result is 4. 
Result so far: 89954.756264
If we take 3512 away from 3720, we end up with 208.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2080, and continue the process.

Let's proceed to step 15:
878 can be fit into 2080 2 times, resulting in a remainder of 324.
The number 2 becomes the next digit in our result. 
Result so far: 89954.7562642
The remainder is 324 after subtracting 1756 from 2080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3240, and continue the process.

Step 16:
878 can be fit into 3240 3 times, resulting in a remainder of 606.
Record the quotient 3 as the next digit in the result. 
Result so far: 89954.75626423
Subtract 2634 from 3240 to get 606.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6060, and continue the process.

The final outcome is 89954.75626423, with a leftover of 6.06e-07.