512185 divided by 12 
Let's see how many times 12 fits into 512185.

Let's proceed to step 1:
The number 12 fits into 5 0 times, leaving a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Fetch the next digit (1) from the dividend, attach it to 5 and continue: 51 / 12

On to step 2:
12 goes into 51 4 times with a remainder of 3.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 48 from 51 to get 3.
Bring next digit (2) of the dividend behind the 3 and repeat the process: 32 / 12

On to step 3:
When dividing 32 by 12, we get 2 with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 42.0
Deduct 24 from 32 and we're left with 8.
Include the next digit (1) from the dividend after 8, then repeat: 81 / 12

On to step 4:
12 goes into 81 6 times with a remainder of 9.
Write down 6 as next digit of the result. 
Result so far: 426.0
If we take 72 away from 81, we end up with 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 12

Moving on to step 5:
The number 12 fits into 98 8 times, leaving a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 4268.0
Subtract 96 from 98 to get 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 12

Step 6:
12 can be fit into 25 2 times, resulting in a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 42682.0
Deduct 24 from 25 and we're left with 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Going ahead to step 7:
12 can be fit into 10 0 times, resulting in a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 42682.0
Subtracting 0 from 10 leaves us with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Moving on to step 8:
When dividing 100 by 12, we get 8 with a remainder of 4.
Record the quotient 8 as the next digit in the result. 
Result so far: 42682.08
The remainder is 4 after subtracting 96 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Going ahead to step 9:
12 goes into 40 3 times with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 42682.083
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.

Going ahead to step 10:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The number 3 becomes the next digit in our result. 
Result so far: 42682.0833
Subtract 36 from 40 to get 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 42682.0833 with a balance of 4e-05.