We're dividing 721166 by 5 
Let's see how many times 5 fits into 721166.

Let's proceed to step 1:
If we divide 7 by 5, we get 1 and a remainder of 2.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 5 from 7, we get 2.
Fetch the next digit (2) from the dividend, attach it to 2 and continue: 22 / 5

Advancing to step 2:
5 can be fit into 22 4 times, resulting in a remainder of 2.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 20 from 22 and we're left with 2.
Bring next digit (1) of the dividend behind the 2 and repeat the process: 21 / 5

Moving on to step 3:
When dividing 21 by 5, we get 4 with a remainder of 1.
The next digit of our result is 4. 
Result so far: 144.0
If we subtract 20 from 21, we get 1.
Take the next digit (1) from the dividend and append it to 1, then repeat: 11 / 5

Moving on to step 4:
When dividing 11 by 5, we get 2 with a remainder of 1.
Record the quotient 2 as the next digit in the result. 
Result so far: 1442.0
Subtract 10 from 11 to get 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 5

On to step 5:
5 goes into 16 3 times with a remainder of 1.
Use 3 as the next digit of our solution. 
Result so far: 14423.0
The remainder is 1 after subtracting 15 from 16.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 5

Moving on to step 6:
The number 5 fits into 16 3 times, leaving a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 144233.0
The remainder is 1 after subtracting 15 from 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Advancing to step 7:
The number 5 fits into 10 2 times, leaving a remainder of 0.
Write down 2 as next digit of the result. 
Result so far: 144233.2
The remainder is 0 after subtracting 10 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

On to step 8:
When dividing 0 by 5, we get 0 with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 144233.2
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:
5 goes into 0 0 times with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 144233.2
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 result is 144233.2 with a remainder of 0.0.