We're dividing 136494 by 86 
We want to divide 136494 by 86.

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
If we subtract 0 from 1, we get 1.
Take the next digit (3) from the dividend and append it to 1, then repeat: 13 / 86

Let's proceed to step 2:
86 goes into 13 0 times with a remainder of 13.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 13, we get 13.
Append the next digit (6) from the dividend to 13 and continue with: 136 / 86

Advancing to step 3:
If we divide 136 by 86, we get 1 and a remainder of 50.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 86 away from 136, we end up with 50.
Take the next digit (4) from the dividend and append it to 50, then repeat: 504 / 86

Advancing to step 4:
When dividing 504 by 86, we get 5 with a remainder of 74.
Write down 5 as next digit of the result. 
Result so far: 15.0
If we subtract 430 from 504, we get 74.
Fetch the next digit (9) from the dividend, attach it to 74 and continue: 749 / 86

Moving on to step 5:
86 goes into 749 8 times with a remainder of 61.
Put 8 as the next digit of the answer. 
Result so far: 158.0
Deduct 688 from 749 and we're left with 61.
Append the next digit (4) from the dividend to 61 and continue with: 614 / 86

Let's proceed to step 6:
86 can be fit into 614 7 times, resulting in a remainder of 12.
Use 7 as the next digit of our solution. 
Result so far: 1587.0
If we subtract 602 from 614, 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.

Let's proceed to step 7:
When dividing 120 by 86, we get 1 with a remainder of 34.
The number 1 becomes the next digit in our result. 
Result so far: 1587.1
Subtracting 86 from 120 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Let's proceed to step 8:
When dividing 340 by 86, we get 3 with a remainder of 82.
Put 3 as the next digit of the answer. 
Result so far: 1587.13
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.

On to step 9:
When dividing 820 by 86, we get 9 with a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 1587.139
If we subtract 774 from 820, we get 46.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 10:
If we divide 460 by 86, we get 5 and a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 1587.1395
Deduct 430 from 460 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 11:
If we divide 300 by 86, we get 3 and a remainder of 42.
Write down 3 as next digit of the result. 
Result so far: 1587.13953
Deduct 258 from 300 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 12:
86 can be fit into 420 4 times, resulting in a remainder of 76.
Write down 4 as next digit of the result. 
Result so far: 1587.139534
The remainder is 76 after subtracting 344 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Step 13:
When dividing 760 by 86, we get 8 with a remainder of 72.
The number 8 becomes the next digit in our result. 
Result so far: 1587.1395348
The remainder is 72 after subtracting 688 from 760.
Since there are no more digits in the dividend, we add a zero to the remainder making it 720, and continue the process.

On to step 14:
86 can be fit into 720 8 times, resulting in a remainder of 32.
Use 8 as the next digit of our solution. 
Result so far: 1587.13953488
If we subtract 688 from 720, we get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

The final outcome is 1587.13953488, with a leftover of 3.2e-08.