We look at the division of 78128881 by 87 
Let's see how many times 87 fits into 78128881.

On to step 1:
The number 87 fits into 7 0 times, leaving a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 7 and we're left with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 87

On to step 2:
78 divided by 87 is 0 with a remainder of 78.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 78, we get 78.
Take the next digit (1) from the dividend and append it to 78, then repeat: 781 / 87

On to step 3:
If we divide 781 by 87, we get 8 and a remainder of 85.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Subtract 696 from 781 to get 85.
Take the next digit (2) from the dividend and append it to 85, then repeat: 852 / 87

Going ahead to step 4:
The number 87 fits into 852 9 times, leaving a remainder of 69.
Record the quotient 9 as the next digit in the result. 
Result so far: 89.0
The remainder is 69 after subtracting 783 from 852.
Bring next digit (8) of the dividend behind the 69 and repeat the process: 698 / 87

Step 5:
When dividing 698 by 87, we get 8 with a remainder of 2.
Write down 8 as next digit of the result. 
Result so far: 898.0
If we subtract 696 from 698, we get 2.
Take the next digit (8) from the dividend and append it to 2, then repeat: 28 / 87

Step 6:
If we divide 28 by 87, we get 0 and a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 8980.0
Deduct 0 from 28 and we're left with 28.
Fetch the next digit (8) from the dividend, attach it to 28 and continue: 288 / 87

Let's proceed to step 7:
If we divide 288 by 87, we get 3 and a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 89803.0
If we subtract 261 from 288, we get 27.
Append the next digit (1) from the dividend to 27 and continue with: 271 / 87

Let's proceed to step 8:
87 can be fit into 271 3 times, resulting in a remainder of 10.
Record the quotient 3 as the next digit in the result. 
Result so far: 898033.0
Subtracting 261 from 271 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 9:
100 divided by 87 is 1 with a remainder of 13.
Put 1 as the next digit of the answer. 
Result so far: 898033.1
Subtracting 87 from 100 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Moving on to step 10:
87 goes into 130 1 times with a remainder of 43.
The number 1 becomes the next digit in our result. 
Result so far: 898033.11
Subtract 87 from 130 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

The final outcome is 898033.11, with a leftover of 0.043.