We look at the division of 16887 by 12 
Let's see how many times 12 fits into 16887.

Step 1:
If we divide 1 by 12, we get 0 and a remainder of 1.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Include the next digit (6) from the dividend after 1, then repeat: 16 / 12

On to step 2:
If we divide 16 by 12, we get 1 and a remainder of 4.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Deduct 12 from 16 and we're left with 4.
Take the next digit (8) from the dividend and append it to 4, then repeat: 48 / 12

Moving on to step 3:
12 goes into 48 4 times with a remainder of 0.
The next digit of our result is 4. 
Result so far: 14.0
If we subtract 48 from 48, we get 0.
Include the next digit (8) from the dividend after 0, then repeat: 8 / 12

Let's proceed to step 4:
12 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 140.0
If we subtract 0 from 8, we get 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 12

Going ahead to step 5:
When dividing 87 by 12, we get 7 with a remainder of 3.
The next digit of our result is 7. 
Result so far: 1407.0
The remainder is 3 after subtracting 84 from 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 6:
If we divide 30 by 12, we get 2 and a remainder of 6.
Put 2 as the next digit of the answer. 
Result so far: 1407.2
The remainder is 6 after subtracting 24 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Step 7:
12 can be fit into 60 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 1407.25
Deduct 60 from 60 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.

Step 8:
When dividing 0 by 12, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1407.25
Subtract 0 from 0 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.

Advancing to step 9:
0 divided by 12 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1407.25
Subtract 0 from 0 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.

The final outcome is 1407.25, with a leftover of 0.0.