173819 ÷ 12 
Let's see how many times 12 fits into 173819.

Step 1:
12 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (7) from the dividend after 1, then repeat: 17 / 12

On to step 2:
12 goes into 17 1 times with a remainder of 5.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 12 away from 17, we end up with 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 12

Step 3:
When dividing 53 by 12, we get 4 with a remainder of 5.
The number 4 becomes the next digit in our result. 
Result so far: 14.0
Deduct 48 from 53 and we're left with 5.
Bring next digit (8) of the dividend behind the 5 and repeat the process: 58 / 12

Advancing to step 4:
12 goes into 58 4 times with a remainder of 10.
The number 4 becomes the next digit in our result. 
Result so far: 144.0
If we subtract 48 from 58, we get 10.
Take the next digit (1) from the dividend and append it to 10, then repeat: 101 / 12

Moving on to step 5:
When dividing 101 by 12, we get 8 with a remainder of 5.
Write down 8 as next digit of the result. 
Result so far: 1448.0
Subtracting 96 from 101 leaves us with 5.
Include the next digit (9) from the dividend after 5, then repeat: 59 / 12

Step 6:
12 goes into 59 4 times with a remainder of 11.
Record the quotient 4 as the next digit in the result. 
Result so far: 14484.0
Subtract 48 from 59 to get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 7:
If we divide 110 by 12, we get 9 and a remainder of 2.
Use 9 as the next digit of our solution. 
Result so far: 14484.9
Subtracting 108 from 110 leaves us with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
20 divided by 12 is 1 with a remainder of 8.
Use 1 as the next digit of our solution. 
Result so far: 14484.91
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:
If we divide 80 by 12, we get 6 and a remainder of 8.
Write down 6 as next digit of the result. 
Result so far: 14484.916
The remainder is 8 after subtracting 72 from 80.
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:
12 can be fit into 80 6 times, resulting in a remainder of 8.
Use 6 as the next digit of our solution. 
Result so far: 14484.9166
The remainder is 8 after subtracting 72 from 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

The final outcome is 14484.9166, with a leftover of 8e-05.