We're dividing 5139 by 6 
We're looking to find how many times 6 goes into 5139.

Advancing to step 1:
5 divided by 6 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 6

Step 2:
The number 6 fits into 51 8 times, leaving a remainder of 3.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 3 after subtracting 48 from 51.
Fetch the next digit (3) from the dividend, attach it to 3 and continue: 33 / 6

On to step 3:
6 can be fit into 33 5 times, resulting in a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 85.0
Deduct 30 from 33 and we're left with 3.
Take the next digit (9) from the dividend and append it to 3, then repeat: 39 / 6

Moving on to step 4:
6 goes into 39 6 times with a remainder of 3.
The next digit of our result is 6. 
Result so far: 856.0
The remainder is 3 after subtracting 36 from 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 5:
If we divide 30 by 6, we get 5 and a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 856.5
Subtract 30 from 30 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 6:
The number 6 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 856.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 7:
6 can be fit into 0 0 times, resulting in a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 856.5
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 856.5 with a remaining 0.0.