Why is the probability of rolling a product of 6 when rolling 2 dice 1/9

How does one find the answer?

The total outcomes of rolling 2 die is 6 x 6 = 36 ways.

Only 1 x 6, 2 x 3, 3 x 2, and 6 x 1 are the 4 ways to have a product of 6

4 / 36 = 1 / 9

The chance of having a product as 6, is 1/9 or approx. 11.1%