We look at the division of 172066 by 4 
Our goal is to divide 172066 by 4.

Advancing to step 1:
The number 4 fits into 1 0 times, leaving 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.
Take the next digit (7) from the dividend and append it to 1, then repeat: 17 / 4

Going ahead to step 2:
17 divided by 4 is 4 with a remainder of 1.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 16 from 17 leaves us with 1.
Bring next digit (2) of the dividend behind the 1 and repeat the process: 12 / 4

Advancing to step 3:
4 goes into 12 3 times with a remainder of 0.
Write down 3 as next digit of the result. 
Result so far: 43.0
The remainder is 0 after subtracting 12 from 12.
Fetch the next digit (0) from the dividend, attach it to 0 and continue: 0 / 4

On to step 4:
0 divided by 4 is 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 430.0
Deduct 0 from 0 and we're left with 0.
Bring next digit (6) of the dividend behind the 0 and repeat the process: 6 / 4

Advancing to step 5:
When dividing 6 by 4, we get 1 with a remainder of 2.
The next digit of our result is 1. 
Result so far: 4301.0
The remainder is 2 after subtracting 4 from 6.
Fetch the next digit (6) from the dividend, attach it to 2 and continue: 26 / 4

On to step 6:
26 divided by 4 is 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 43016.0
If we subtract 24 from 26, we get 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 7:
4 can be fit into 20 5 times, resulting in a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 43016.5
Subtracting 20 from 20 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.

Going ahead to step 8:
4 can be fit into 0 0 times, resulting in a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 43016.5
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.

Let's proceed to step 9:
0 divided by 4 is 0 with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 43016.5
If we take 0 away from 0, 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.

Our division results in 43016.5 with a remaining 0.0.