-2/13 ÷ (-6/39)

1. Rewrite division as multiplication by the reciprocal: $$- \frac{2}{13} \times (-\frac{39}{6})$$

2. Multiply the fractions: $$\frac{2 \times 39}{13 \times 6}$$

3. Simplify: $$\frac{78}{78} = 1$$