Let's divide 136 by 86
We want to figure out the number of times 136 can be divided by 86.

On to step 1:
86 can be fit into 1 0 times, resulting in a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 86

Step 2:
13 divided by 86 is 0 with a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 13 after subtracting 0 from 13.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 86

On to step 3:
When dividing 136 by 86, we get 1 with a remainder of 50.
Put 1 as the next digit of the answer. 
Result so far: 1.0
The remainder is 50 after subtracting 86 from 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 4:
The number 86 fits into 500 5 times, leaving a remainder of 70.
Put 5 as the next digit of the answer. 
Result so far: 1.5
Deduct 430 from 500 and we're left 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.

On to step 5:
86 goes into 700 8 times with a remainder of 12.
Put 8 as the next digit of the answer. 
Result so far: 1.58
If we take 688 away from 700, we end up 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.

Step 6:
120 divided by 86 is 1 with a remainder of 34.
Write down 1 as next digit of the result. 
Result so far: 1.581
The remainder is 34 after subtracting 86 from 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

On to step 7:
86 can be fit into 340 3 times, resulting in a remainder of 82.
The number 3 becomes the next digit in our result. 
Result so far: 1.5813
The remainder is 82 after subtracting 258 from 340.
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 8:
When dividing 820 by 86, we get 9 with a remainder of 46.
The next digit of our result is 9. 
Result so far: 1.58139
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.

Advancing to step 9:
When dividing 460 by 86, we get 5 with a remainder of 30.
Write down 5 as next digit of the result. 
Result so far: 1.581395
If we subtract 430 from 460, we get 30.
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 10:
If we divide 300 by 86, we get 3 and a remainder of 42.
The next digit of our result is 3. 
Result so far: 1.5813953
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.

On to step 11:
If we divide 420 by 86, we get 4 and a remainder of 76.
The next digit of our result is 4. 
Result so far: 1.58139534
If we subtract 344 from 420, we get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

The final result is 1.58139534 with a remainder of 7.6e-08.