86428277 divided by 878 
We want to figure out the number of times 86428277 can be divided by 878.

Step 1:
878 can be fit into 8 0 times, resulting in a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (6) from the dividend to 8 and continue with: 86 / 878

Let's proceed to step 2:
When dividing 86 by 878, we get 0 with a remainder of 86.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Fetch the next digit (4) from the dividend, attach it to 86 and continue: 864 / 878

On to step 3:
864 divided by 878 is 0 with a remainder of 864.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 864 after subtracting 0 from 864.
Fetch the next digit (2) from the dividend, attach it to 864 and continue: 8642 / 878

Moving on to step 4:
When dividing 8642 by 878, we get 9 with a remainder of 740.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Subtracting 7902 from 8642 leaves us with 740.
Bring next digit (8) of the dividend behind the 740 and repeat the process: 7408 / 878

Advancing to step 5:
878 goes into 7408 8 times with a remainder of 384.
The number 8 becomes the next digit in our result. 
Result so far: 98.0
The remainder is 384 after subtracting 7024 from 7408.
Bring next digit (2) of the dividend behind the 384 and repeat the process: 3842 / 878

On to step 6:
If we divide 3842 by 878, we get 4 and a remainder of 330.
The next digit of our result is 4. 
Result so far: 984.0
Deduct 3512 from 3842 and we're left with 330.
Append the next digit (7) from the dividend to 330 and continue with: 3307 / 878

Going ahead to step 7:
When dividing 3307 by 878, we get 3 with a remainder of 673.
The next digit of our result is 3. 
Result so far: 9843.0
Subtract 2634 from 3307 to get 673.
Take the next digit (7) from the dividend and append it to 673, then repeat: 6737 / 878

Going ahead to step 8:
When dividing 6737 by 878, we get 7 with a remainder of 591.
The number 7 becomes the next digit in our result. 
Result so far: 98437.0
Subtracting 6146 from 6737 leaves us with 591.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5910, and continue the process.

On to step 9:
When dividing 5910 by 878, we get 6 with a remainder of 642.
Record the quotient 6 as the next digit in the result. 
Result so far: 98437.6
The remainder is 642 after subtracting 5268 from 5910.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6420, and continue the process.

Step 10:
6420 divided by 878 is 7 with a remainder of 274.
Put 7 as the next digit of the answer. 
Result so far: 98437.67
Subtract 6146 from 6420 to get 274.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2740, and continue the process.

Moving on to step 11:
878 can be fit into 2740 3 times, resulting in a remainder of 106.
Record the quotient 3 as the next digit in the result. 
Result so far: 98437.673
Subtracting 2634 from 2740 leaves us with 106.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

On to step 12:
The number 878 fits into 1060 1 times, leaving a remainder of 182.
Write down 1 as next digit of the result. 
Result so far: 98437.6731
If we take 878 away from 1060, we end up with 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Step 13:
878 goes into 1820 2 times with a remainder of 64.
Put 2 as the next digit of the answer. 
Result so far: 98437.67312
Subtract 1756 from 1820 to get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Going ahead to step 14:
878 can be fit into 640 0 times, resulting in a remainder of 640.
Put 0 as the next digit of the answer. 
Result so far: 98437.67312
The remainder is 640 after subtracting 0 from 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Let's proceed to step 15:
When dividing 6400 by 878, we get 7 with a remainder of 254.
Record the quotient 7 as the next digit in the result. 
Result so far: 98437.6731207
Deduct 6146 from 6400 and we're left with 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Step 16:
2540 divided by 878 is 2 with a remainder of 784.
Use 2 as the next digit of our solution. 
Result so far: 98437.67312072
Subtract 1756 from 2540 to get 784.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7840, and continue the process.

After the division, we end up with 98437.67312072 and a remainder of 7.84e-07.