243172 ÷ 16 
We want to figure out the number of times 243172 can be divided by 16.

Going ahead to step 1:
The number 16 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 2, we end up with 2.
Grab the next digit (4) from the dividend, add it to 2, then carry on: 24 / 16

Step 2:
24 divided by 16 is 1 with a remainder of 8.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we take 16 away from 24, we end up with 8.
Include the next digit (3) from the dividend after 8, then repeat: 83 / 16

Step 3:
When dividing 83 by 16, we get 5 with a remainder of 3.
Put 5 as the next digit of the answer. 
Result so far: 15.0
Subtract 80 from 83 to get 3.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 16

Let's proceed to step 4:
16 goes into 31 1 times with a remainder of 15.
Record the quotient 1 as the next digit in the result. 
Result so far: 151.0
If we subtract 16 from 31, we get 15.
Bring next digit (7) of the dividend behind the 15 and repeat the process: 157 / 16

Advancing to step 5:
157 divided by 16 is 9 with a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 1519.0
Subtracting 144 from 157 leaves us with 13.
Fetch the next digit (2) from the dividend, attach it to 13 and continue: 132 / 16

Moving on to step 6:
16 goes into 132 8 times with a remainder of 4.
The next digit of our result is 8. 
Result so far: 15198.0
If we subtract 128 from 132, we get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 7:
The number 16 fits into 40 2 times, leaving a remainder of 8.
Put 2 as the next digit of the answer. 
Result so far: 15198.2
If we take 32 away from 40, we end up 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.

Going ahead to step 8:
16 goes into 80 5 times with a remainder of 0.
The number 5 becomes the next digit in our result. 
Result so far: 15198.25
If we take 80 away from 80, we end up 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.

Moving on to step 9:
0 divided by 16 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 15198.25
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.

Advancing to step 10:
When dividing 0 by 16, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 15198.25
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 15198.25 with a remainder of 0.0.