We're dividing 135864 by 86 
Let's see how many times 86 fits into 135864.

Advancing to step 1:
86 goes into 1 0 times with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Bring next digit (3) of the dividend behind the 1 and repeat the process: 13 / 86

Going ahead to step 2:
The number 86 fits into 13 0 times, leaving a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Take the next digit (5) from the dividend and append it to 13, then repeat: 135 / 86

Advancing to step 3:
135 divided by 86 is 1 with a remainder of 49.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Deduct 86 from 135 and we're left with 49.
Include the next digit (8) from the dividend after 49, then repeat: 498 / 86

Moving on to step 4:
If we divide 498 by 86, we get 5 and a remainder of 68.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Deduct 430 from 498 and we're left with 68.
Bring next digit (6) of the dividend behind the 68 and repeat the process: 686 / 86

Advancing to step 5:
686 divided by 86 is 7 with a remainder of 84.
Use 7 as the next digit of our solution. 
Result so far: 157.0
Subtract 602 from 686 to get 84.
Bring next digit (4) of the dividend behind the 84 and repeat the process: 844 / 86

Going ahead to step 6:
If we divide 844 by 86, we get 9 and a remainder of 70.
The next digit of our result is 9. 
Result so far: 1579.0
Subtracting 774 from 844 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 7:
If we divide 700 by 86, we get 8 and a remainder of 12.
The next digit of our result is 8. 
Result so far: 1579.8
Subtracting 688 from 700 leaves us with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 8:
120 divided by 86 is 1 with a remainder of 34.
The next digit of our result is 1. 
Result so far: 1579.81
If we subtract 86 from 120, we get 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Going ahead to step 9:
If we divide 340 by 86, we get 3 and a remainder of 82.
Put 3 as the next digit of the answer. 
Result so far: 1579.813
If we take 258 away from 340, we end up with 82.
Since there are no more digits in the dividend, we add a zero to the remainder making it 820, and continue the process.

Going ahead to step 10:
When dividing 820 by 86, we get 9 with a remainder of 46.
The number 9 becomes the next digit in our result. 
Result so far: 1579.8139
If we take 774 away from 820, we end up with 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Advancing to step 11:
The number 86 fits into 460 5 times, leaving a remainder of 30.
The next digit of our result is 5. 
Result so far: 1579.81395
The remainder is 30 after subtracting 430 from 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Advancing to step 12:
If we divide 300 by 86, we get 3 and a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 1579.813953
Subtract 258 from 300 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 13:
The number 86 fits into 420 4 times, leaving a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 1579.8139534
If we take 344 away from 420, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 14:
760 divided by 86 is 8 with a remainder of 72.
Record the quotient 8 as the next digit in the result. 
Result so far: 1579.81395348
If we subtract 688 from 760, we get 72.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

After the division, we end up with 1579.81395348 and a remainder of 7.2e-08.