We're dividing 5071888 by 12 
We're looking to find how many times 12 goes into 5071888.

On to step 1:
If we divide 5 by 12, we get 0 and a remainder of 5.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (0) from the dividend and append it to 5, then repeat: 50 / 12

Advancing to step 2:
50 divided by 12 is 4 with a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we subtract 48 from 50, we get 2.
Bring next digit (7) of the dividend behind the 2 and repeat the process: 27 / 12

Moving on to step 3:
If we divide 27 by 12, we get 2 and a remainder of 3.
Write down 2 as next digit of the result. 
Result so far: 42.0
If we take 24 away from 27, we end up with 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 12

Step 4:
31 divided by 12 is 2 with a remainder of 7.
Write down 2 as next digit of the result. 
Result so far: 422.0
Deduct 24 from 31 and we're left with 7.
Include the next digit (8) from the dividend after 7, then repeat: 78 / 12

Moving on to step 5:
12 goes into 78 6 times with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 4226.0
Deduct 72 from 78 and we're left with 6.
Include the next digit (8) from the dividend after 6, then repeat: 68 / 12

Going ahead to step 6:
12 goes into 68 5 times with a remainder of 8.
The number 5 becomes the next digit in our result. 
Result so far: 42265.0
Subtracting 60 from 68 leaves us with 8.
Include the next digit (8) from the dividend after 8, then repeat: 88 / 12

Step 7:
If we divide 88 by 12, we get 7 and a remainder of 4.
Use 7 as the next digit of our solution. 
Result so far: 422657.0
Subtracting 84 from 88 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 8:
If we divide 40 by 12, we get 3 and a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 422657.3
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

On to step 9:
If we divide 40 by 12, we get 3 and a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 422657.33
Deduct 36 from 40 and we're left with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 422657.33 with a balance of 0.004.