442409 ÷ 12 
We're looking to find how many times 12 goes into 442409.

Step 1:
12 can be fit into 4 0 times, resulting in a remainder of 4.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Take the next digit (4) from the dividend and append it to 4, then repeat: 44 / 12

Going ahead to step 2:
If we divide 44 by 12, we get 3 and a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 36 from 44, we get 8.
Bring next digit (2) of the dividend behind the 8 and repeat the process: 82 / 12

Step 3:
12 can be fit into 82 6 times, resulting in a remainder of 10.
Use 6 as the next digit of our solution. 
Result so far: 36.0
If we take 72 away from 82, we end up with 10.
Grab the next digit (4) from the dividend, add it to 10, then carry on: 104 / 12

Let's proceed to step 4:
The number 12 fits into 104 8 times, leaving a remainder of 8.
The number 8 becomes the next digit in our result. 
Result so far: 368.0
If we take 96 away from 104, we end up with 8.
Include the next digit (0) from the dividend after 8, then repeat: 80 / 12

On to step 5:
When dividing 80 by 12, we get 6 with a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 3686.0
Deduct 72 from 80 and we're left with 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 12

Let's proceed to step 6:
If we divide 89 by 12, we get 7 and a remainder of 5.
The next digit of our result is 7. 
Result so far: 36867.0
If we take 84 away from 89, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 7:
12 can be fit into 50 4 times, resulting in a remainder of 2.
The next digit of our result is 4. 
Result so far: 36867.4
Subtract 48 from 50 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Going ahead to step 8:
12 can be fit into 20 1 times, resulting in a remainder of 8.
The next digit of our result is 1. 
Result so far: 36867.41
Deduct 12 from 20 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 9:
The number 12 fits into 80 6 times, leaving a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 36867.416
Subtracting 72 from 80 leaves us with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Advancing to step 10:
The number 12 fits into 80 6 times, leaving a remainder of 8.
The next digit of our result is 6. 
Result so far: 36867.4166
Deduct 72 from 80 and we're left with 8.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The quotient of the division is 36867.4166, and the remainder is 8e-05.