Dividing a number by a fraction is the same as multiplying that number by the reciprocal of the fraction.
To divide \( 144 \) by \( \frac{1}{3} \), you can rewrite it as:
\[ 144 \div \frac{1}{3} = 144 \times 3 \]
Now, multiply:
\[ 144 \times 3 = 432 \]
So, \( 144 \div \frac{1}{3} = 432 \).