86786889 ÷ 877 
Let's see how many times 877 fits into 86786889.

Advancing to step 1:
8 divided by 877 is 0 with a remainder of 8.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 8 after subtracting 0 from 8.
Fetch the next digit (6) from the dividend, attach it to 8 and continue: 86 / 877

Going ahead to step 2:
877 can be fit into 86 0 times, resulting in a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Grab the next digit (7) from the dividend, add it to 86, then carry on: 867 / 877

Let's proceed to step 3:
When dividing 867 by 877, we get 0 with a remainder of 867.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 867, we end up with 867.
Include the next digit (8) from the dividend after 867, then repeat: 8678 / 877

Step 4:
877 can be fit into 8678 9 times, resulting in a remainder of 785.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 7893 from 8678 and we're left with 785.
Fetch the next digit (6) from the dividend, attach it to 785 and continue: 7856 / 877

Going ahead to step 5:
The number 877 fits into 7856 8 times, leaving a remainder of 840.
The number 8 becomes the next digit in our result. 
Result so far: 98.0
Deduct 7016 from 7856 and we're left with 840.
Take the next digit (8) from the dividend and append it to 840, then repeat: 8408 / 877

Advancing to step 6:
When dividing 8408 by 877, we get 9 with a remainder of 515.
Put 9 as the next digit of the answer. 
Result so far: 989.0
Subtract 7893 from 8408 to get 515.
Append the next digit (8) from the dividend to 515 and continue with: 5158 / 877

Moving on to step 7:
If we divide 5158 by 877, we get 5 and a remainder of 773.
Write down 5 as next digit of the result. 
Result so far: 9895.0
Subtract 4385 from 5158 to get 773.
Grab the next digit (9) from the dividend, add it to 773, then carry on: 7739 / 877

Advancing to step 8:
If we divide 7739 by 877, we get 8 and a remainder of 723.
Write down 8 as next digit of the result. 
Result so far: 98958.0
If we take 7016 away from 7739, we end up with 723.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7230, and continue the process.

Let's proceed to step 9:
7230 divided by 877 is 8 with a remainder of 214.
The number 8 becomes the next digit in our result. 
Result so far: 98958.8
If we take 7016 away from 7230, we end up with 214.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2140, and continue the process.

Step 10:
877 goes into 2140 2 times with a remainder of 386.
Put 2 as the next digit of the answer. 
Result so far: 98958.82
Subtracting 1754 from 2140 leaves us with 386.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3860, and continue the process.

Moving on to step 11:
When dividing 3860 by 877, we get 4 with a remainder of 352.
Put 4 as the next digit of the answer. 
Result so far: 98958.824
If we take 3508 away from 3860, we end up with 352.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Advancing to step 12:
877 goes into 3520 4 times with a remainder of 12.
The next digit of our result is 4. 
Result so far: 98958.8244
If we subtract 3508 from 3520, we get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 98958.8244, with a leftover of 0.00012.