We're dividing 86709384 by 159 
Our goal is to divide 86709384 by 159.

Going ahead to step 1:
If we divide 8 by 159, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 159

Moving on to step 2:
159 can be fit into 86 0 times, resulting in a remainder of 86.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 86, we end up with 86.
Fetch the next digit (7) from the dividend, attach it to 86 and continue: 867 / 159

On to step 3:
When dividing 867 by 159, we get 5 with a remainder of 72.
Record the quotient 5 as the next digit in the result. 
Result so far: 5.0
Subtracting 795 from 867 leaves us with 72.
Bring next digit (0) of the dividend behind the 72 and repeat the process: 720 / 159

Going ahead to step 4:
The number 159 fits into 720 4 times, leaving a remainder of 84.
Put 4 as the next digit of the answer. 
Result so far: 54.0
The remainder is 84 after subtracting 636 from 720.
Append the next digit (9) from the dividend to 84 and continue with: 849 / 159

Moving on to step 5:
When dividing 849 by 159, we get 5 with a remainder of 54.
Record the quotient 5 as the next digit in the result. 
Result so far: 545.0
Subtracting 795 from 849 leaves us with 54.
Bring next digit (3) of the dividend behind the 54 and repeat the process: 543 / 159

Going ahead to step 6:
543 divided by 159 is 3 with a remainder of 66.
Record the quotient 3 as the next digit in the result. 
Result so far: 5453.0
The remainder is 66 after subtracting 477 from 543.
Take the next digit (8) from the dividend and append it to 66, then repeat: 668 / 159

Step 7:
The number 159 fits into 668 4 times, leaving a remainder of 32.
Put 4 as the next digit of the answer. 
Result so far: 54534.0
The remainder is 32 after subtracting 636 from 668.
Include the next digit (4) from the dividend after 32, then repeat: 324 / 159

Going ahead to step 8:
The number 159 fits into 324 2 times, leaving a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 545342.0
If we subtract 318 from 324, we 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.

On to step 9:
The number 159 fits into 60 0 times, leaving a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 545342.0
Deduct 0 from 60 and we're left with 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 10:
If we divide 600 by 159, we get 3 and a remainder of 123.
The next digit of our result is 3. 
Result so far: 545342.03
Subtracting 477 from 600 leaves us with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 11:
The number 159 fits into 1230 7 times, leaving a remainder of 117.
Put 7 as the next digit of the answer. 
Result so far: 545342.037
If we subtract 1113 from 1230, we get 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Moving on to step 12:
159 can be fit into 1170 7 times, resulting in a remainder of 57.
Use 7 as the next digit of our solution. 
Result so far: 545342.0377
If we take 1113 away from 1170, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

The quotient of the division is 545342.0377, and the remainder is 0.00057.