86864552 ÷ 873 
We want to figure out the number of times 86864552 can be divided by 873.

On to step 1:
873 can be fit into 8 0 times, resulting in a remainder of 8.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (6) from the dividend and append it to 8, then repeat: 86 / 873

On to step 2:
When dividing 86 by 873, we get 0 with a remainder of 86.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 86, we get 86.
Bring next digit (8) of the dividend behind the 86 and repeat the process: 868 / 873

Going ahead to step 3:
The number 873 fits into 868 0 times, leaving a remainder of 868.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 868, we end up with 868.
Bring next digit (6) of the dividend behind the 868 and repeat the process: 8686 / 873

On to step 4:
The number 873 fits into 8686 9 times, leaving a remainder of 829.
Write down 9 as next digit of the result. 
Result so far: 9.0
The remainder is 829 after subtracting 7857 from 8686.
Append the next digit (4) from the dividend to 829 and continue with: 8294 / 873

On to step 5:
8294 divided by 873 is 9 with a remainder of 437.
The next digit of our result is 9. 
Result so far: 99.0
If we subtract 7857 from 8294, we get 437.
Take the next digit (5) from the dividend and append it to 437, then repeat: 4375 / 873

Let's proceed to step 6:
4375 divided by 873 is 5 with a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 995.0
Subtracting 4365 from 4375 leaves us with 10.
Take the next digit (5) from the dividend and append it to 10, then repeat: 105 / 873

Advancing to step 7:
When dividing 105 by 873, we get 0 with a remainder of 105.
Record the quotient 0 as the next digit in the result. 
Result so far: 9950.0
Subtract 0 from 105 to get 105.
Take the next digit (2) from the dividend and append it to 105, then repeat: 1052 / 873

Advancing to step 8:
873 goes into 1052 1 times with a remainder of 179.
The next digit of our result is 1. 
Result so far: 99501.0
Subtract 873 from 1052 to get 179.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1790, and continue the process.

Going ahead to step 9:
The number 873 fits into 1790 2 times, leaving a remainder of 44.
Use 2 as the next digit of our solution. 
Result so far: 99501.2
Deduct 1746 from 1790 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 10:
873 can be fit into 440 0 times, resulting in a remainder of 440.
The number 0 becomes the next digit in our result. 
Result so far: 99501.2
If we take 0 away from 440, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Advancing to step 11:
873 can be fit into 4400 5 times, resulting in a remainder of 35.
The number 5 becomes the next digit in our result. 
Result so far: 99501.205
If we take 4365 away from 4400, we end up with 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

Going ahead to step 12:
873 goes into 350 0 times with a remainder of 350.
Record the quotient 0 as the next digit in the result. 
Result so far: 99501.205
If we subtract 0 from 350, we get 350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3500, and continue the process.

Let's proceed to step 13:
If we divide 3500 by 873, we get 4 and a remainder of 8.
The next digit of our result is 4. 
Result so far: 99501.20504
Subtract 3492 from 3500 to get 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 14:
873 can be fit into 80 0 times, resulting in a remainder of 80.
Put 0 as the next digit of the answer. 
Result so far: 99501.20504
If we take 0 away from 80, we end up with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Going ahead to step 15:
873 goes into 800 0 times with a remainder of 800.
The number 0 becomes the next digit in our result. 
Result so far: 99501.20504
If we take 0 away from 800, we end up with 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8000, and continue the process.

The final outcome is 99501.20504, with a leftover of 8e-06.