We're dividing 12858 by 72 
Let's see how many times 72 fits into 12858.

Moving on to step 1:
If we divide 1 by 72, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 72

Advancing to step 2:
72 can be fit into 12 0 times, resulting in a remainder of 12.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 12 leaves us with 12.
Include the next digit (8) from the dividend after 12, then repeat: 128 / 72

On to step 3:
The number 72 fits into 128 1 times, leaving a remainder of 56.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 72 from 128, we get 56.
Grab the next digit (5) from the dividend, add it to 56, then carry on: 565 / 72

Let's proceed to step 4:
If we divide 565 by 72, we get 7 and a remainder of 61.
Use 7 as the next digit of our solution. 
Result so far: 17.0
If we take 504 away from 565, we end up with 61.
Include the next digit (8) from the dividend after 61, then repeat: 618 / 72

Moving on to step 5:
If we divide 618 by 72, we get 8 and a remainder of 42.
The next digit of our result is 8. 
Result so far: 178.0
If we subtract 576 from 618, we 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.

Moving on to step 6:
72 goes into 420 5 times with a remainder of 60.
Write down 5 as next digit of the result. 
Result so far: 178.5
If we take 360 away from 420, we end up 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 7:
72 goes into 600 8 times with a remainder of 24.
Write down 8 as next digit of the result. 
Result so far: 178.58
Subtract 576 from 600 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 8:
When dividing 240 by 72, we get 3 with a remainder of 24.
The number 3 becomes the next digit in our result. 
Result so far: 178.583
Subtracting 216 from 240 leaves us with 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Step 9:
If we divide 240 by 72, we get 3 and a remainder of 24.
Put 3 as the next digit of the answer. 
Result so far: 178.5833
Subtract 216 from 240 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.

The final outcome is 178.5833, with a leftover of 0.00024.