870688 ÷ 86 
We're looking to find how many times 86 goes into 870688.

Going ahead to step 1:
86 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
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (7) from the dividend, attach it to 8 and continue: 87 / 86

Let's proceed to step 2:
87 divided by 86 is 1 with a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 86 away from 87, we end up with 1.
Take the next digit (0) from the dividend and append it to 1, then repeat: 10 / 86

Advancing to step 3:
If we divide 10 by 86, we get 0 and a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Subtracting 0 from 10 leaves us with 10.
Include the next digit (6) from the dividend after 10, then repeat: 106 / 86

On to step 4:
When dividing 106 by 86, we get 1 with a remainder of 20.
The number 1 becomes the next digit in our result. 
Result so far: 101.0
Subtracting 86 from 106 leaves us with 20.
Bring next digit (8) of the dividend behind the 20 and repeat the process: 208 / 86

Going ahead to step 5:
If we divide 208 by 86, we get 2 and a remainder of 36.
Put 2 as the next digit of the answer. 
Result so far: 1012.0
Deduct 172 from 208 and we're left with 36.
Append the next digit (8) from the dividend to 36 and continue with: 368 / 86

Moving on to step 6:
When dividing 368 by 86, we get 4 with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 10124.0
Subtract 344 from 368 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Advancing to step 7:
86 can be fit into 240 2 times, resulting in a remainder of 68.
The number 2 becomes the next digit in our result. 
Result so far: 10124.2
The remainder is 68 after subtracting 172 from 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Advancing to step 8:
680 divided by 86 is 7 with a remainder of 78.
Use 7 as the next digit of our solution. 
Result so far: 10124.27
If we take 602 away from 680, we end up with 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

Step 9:
If we divide 780 by 86, we get 9 and a remainder of 6.
Put 9 as the next digit of the answer. 
Result so far: 10124.279
Subtract 774 from 780 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Let's proceed to step 10:
The number 86 fits into 60 0 times, leaving a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 10124.279
Subtract 0 from 60 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Advancing to step 11:
600 divided by 86 is 6 with a remainder of 84.
The number 6 becomes the next digit in our result. 
Result so far: 10124.27906
Subtract 516 from 600 to get 84.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Going ahead to step 12:
The number 86 fits into 840 9 times, leaving a remainder of 66.
Record the quotient 9 as the next digit in the result. 
Result so far: 10124.279069
Deduct 774 from 840 and we're left with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Step 13:
660 divided by 86 is 7 with a remainder of 58.
Write down 7 as next digit of the result. 
Result so far: 10124.2790697
Deduct 602 from 660 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

Advancing to step 14:
The number 86 fits into 580 6 times, leaving a remainder of 64.
The number 6 becomes the next digit in our result. 
Result so far: 10124.27906976
If we take 516 away from 580, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

The final result is 10124.27906976 with a remainder of 6.4e-08.