We divide 720320 by 3
We want to figure out the number of times 720320 can be divided by 3.

Going ahead to step 1:
7 divided by 3 is 2 with a remainder of 1.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 1 after subtracting 6 from 7.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 3

On to step 2:
When dividing 12 by 3, we get 4 with a remainder of 0.
Record the quotient 4 as the next digit in the result. 
Result so far: 24.0
If we take 12 away from 12, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 3

Going ahead to step 3:
The number 3 fits into 0 0 times, leaving a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 240.0
Subtract 0 from 0 to get 0.
Fetch the next digit (3) from the dividend, attach it to 0 and continue: 3 / 3

Advancing to step 4:
If we divide 3 by 3, we get 1 and a remainder of 0.
The next digit of our result is 1. 
Result so far: 2401.0
Subtracting 3 from 3 leaves us with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 3

Moving on to step 5:
3 can be fit into 2 0 times, resulting in a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 24010.0
Subtracting 0 from 2 leaves us with 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 3

Moving on to step 6:
When dividing 20 by 3, we get 6 with a remainder of 2.
Use 6 as the next digit of our solution. 
Result so far: 240106.0
If we take 18 away from 20, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 7:
When dividing 20 by 3, we get 6 with a remainder of 2.
The next digit of our result is 6. 
Result so far: 240106.6
If we subtract 18 from 20, 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.

Going ahead to step 8:
3 goes into 20 6 times with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 240106.66
Subtract 18 from 20 to 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.

The final result is 240106.66 with a remainder of 0.002.