Divide:

3 by $\dfrac{1}{3}$

$3 ÷ \dfrac{1}{3}\\[1em] = 3 \times \dfrac{3}{1}\\[1em] = \dfrac{3 \times 3}{1 \times 1}\\[1em] = \dfrac{9}{1}\\[1em] = 9$

Hence, $3 ÷ \dfrac{1}{3} = 9$