510844 ÷ 12 
We want to figure out the number of times 510844 can be divided by 12.

Let's proceed to step 1:
12 goes into 5 0 times with a remainder of 5.
The next digit of our result is 0. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 12

Moving on to step 2:
51 divided by 12 is 4 with a remainder of 3.
The next digit of our result is 4. 
Result so far: 4.0
The remainder is 3 after subtracting 48 from 51.
Bring next digit (0) of the dividend behind the 3 and repeat the process: 30 / 12

Going ahead to step 3:
12 can be fit into 30 2 times, resulting in a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 42.0
Subtracting 24 from 30 leaves us with 6.
Bring next digit (8) of the dividend behind the 6 and repeat the process: 68 / 12

Let's proceed to step 4:
The number 12 fits into 68 5 times, leaving a remainder of 8.
Write down 5 as next digit of the result. 
Result so far: 425.0
Deduct 60 from 68 and we're left with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 12

On to step 5:
12 goes into 84 7 times with a remainder of 0.
Put 7 as the next digit of the answer. 
Result so far: 4257.0
The remainder is 0 after subtracting 84 from 84.
Include the next digit (4) from the dividend after 0, then repeat: 4 / 12

Going ahead to step 6:
When dividing 4 by 12, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 42570.0
Deduct 0 from 4 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 7:
12 can be fit into 40 3 times, resulting in a remainder of 4.
The next digit of our result is 3. 
Result so far: 42570.3
Subtracting 36 from 40 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.

Let's proceed to step 8:
12 goes into 40 3 times with a remainder of 4.
Use 3 as the next digit of our solution. 
Result so far: 42570.33
Subtracting 36 from 40 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.

After the division, we end up with 42570.33 and a remainder of 0.004.