138984 ÷ 16 
Let's see how many times 16 fits into 138984.

Let's proceed to step 1:
1 divided by 16 is 0 with a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 16

Moving on to step 2:
16 can be fit into 13 0 times, resulting in a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 13 and we're left with 13.
Include the next digit (8) from the dividend after 13, then repeat: 138 / 16

On to step 3:
16 goes into 138 8 times with a remainder of 10.
Use 8 as the next digit of our solution. 
Result so far: 8.0
Deduct 128 from 138 and we're left with 10.
Include the next digit (9) from the dividend after 10, then repeat: 109 / 16

Let's proceed to step 4:
When dividing 109 by 16, we get 6 with a remainder of 13.
Record the quotient 6 as the next digit in the result. 
Result so far: 86.0
Deduct 96 from 109 and we're left with 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 16

Step 5:
If we divide 138 by 16, we get 8 and a remainder of 10.
The next digit of our result is 8. 
Result so far: 868.0
Subtract 128 from 138 to get 10.
Fetch the next digit (4) from the dividend, attach it to 10 and continue: 104 / 16

Going ahead to step 6:
16 can be fit into 104 6 times, resulting in a remainder of 8.
Record the quotient 6 as the next digit in the result. 
Result so far: 8686.0
If we subtract 96 from 104, we get 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 7:
80 divided by 16 is 5 with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 8686.5
Deduct 80 from 80 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.

Let's proceed to step 8:
0 divided by 16 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 8686.5
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.

Let's proceed to step 9:
When dividing 0 by 16, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8686.5
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.

After the division, we end up with 8686.5 and a remainder of 0.0.