172704 ÷ 4 
We want to figure out the number of times 172704 can be divided by 4.

Going ahead to step 1:
If we divide 1 by 4, we get 0 and a remainder of 1.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (7) from the dividend to 1 and continue with: 17 / 4

Let's proceed to step 2:
If we divide 17 by 4, we get 4 and a remainder of 1.
Use 4 as the next digit of our solution. 
Result so far: 4.0
If we take 16 away from 17, we end up with 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 4

Advancing to step 3:
4 can be fit into 12 3 times, resulting in a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 43.0
Deduct 12 from 12 and we're left with 0.
Take the next digit (7) from the dividend and append it to 0, then repeat: 7 / 4

Let's proceed to step 4:
When dividing 7 by 4, we get 1 with a remainder of 3.
Write down 1 as next digit of the result. 
Result so far: 431.0
The remainder is 3 after subtracting 4 from 7.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 4

Let's proceed to step 5:
If we divide 30 by 4, we get 7 and a remainder of 2.
Use 7 as the next digit of our solution. 
Result so far: 4317.0
The remainder is 2 after subtracting 28 from 30.
Append the next digit (4) from the dividend to 2 and continue with: 24 / 4

On to step 6:
When dividing 24 by 4, we get 6 with a remainder of 0.
The next digit of our result is 6. 
Result so far: 43176.0
Subtract 24 from 24 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.

Step 7:
4 can be fit into 0 0 times, resulting in a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 43176.0
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.

Let's proceed to step 8:
4 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 43176.0
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.

After the division, we end up with 43176.0 and a remainder of 0.0.