495249 ÷ 12 
We want to figure out the number of times 495249 can be divided by 12.

Advancing to step 1:
12 can be fit into 4 0 times, resulting in a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 4 after subtracting 0 from 4.
Grab the next digit (9) from the dividend, add it to 4, then carry on: 49 / 12

Moving on to step 2:
If we divide 49 by 12, we get 4 and a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 1 after subtracting 48 from 49.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 12

Let's proceed to step 3:
15 divided by 12 is 1 with a remainder of 3.
Put 1 as the next digit of the answer. 
Result so far: 41.0
Deduct 12 from 15 and we're left with 3.
Take the next digit (2) from the dividend and append it to 3, then repeat: 32 / 12

Let's proceed to step 4:
12 goes into 32 2 times with a remainder of 8.
Use 2 as the next digit of our solution. 
Result so far: 412.0
Deduct 24 from 32 and we're left with 8.
Take the next digit (4) from the dividend and append it to 8, then repeat: 84 / 12

Let's proceed to step 5:
12 goes into 84 7 times with a remainder of 0.
Write down 7 as next digit of the result. 
Result so far: 4127.0
Subtracting 84 from 84 leaves us with 0.
Append the next digit (9) from the dividend to 0 and continue with: 9 / 12

Going ahead to step 6:
The number 12 fits into 9 0 times, leaving a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 41270.0
If we take 0 away from 9, we end up with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 7:
When dividing 90 by 12, we get 7 with a remainder of 6.
Record the quotient 7 as the next digit in the result. 
Result so far: 41270.7
Deduct 84 from 90 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 8:
12 can be fit into 60 5 times, resulting in a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 41270.75
Subtract 60 from 60 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.

On to step 9:
If we divide 0 by 12, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 41270.75
Subtracting 0 from 0 leaves us with 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 10:
0 divided by 12 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 41270.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final result is 41270.75 with a remainder of 0.0.