What is the reciprocal of $0.\overline{714285}$? Express your answer as a decimal.
Let's first convert $0.\overline{714285}$ to a fraction. If we define the variable $s$ to be $0.\overline{714285}$, then multiplying both sides of $s=0.\overline{714285}$ by 1,000,000 gives us $$1,\!000,\!000s = 714,\!285.\overline{714285}.$$Subtracting $s$ from $1,\!000,\!000s$ and $0.\overline{714285}$ from $714,\!285.\overline{714285}$ tells us that $999,\!999s = 714,\!285$ and thus $$s=\frac{714,\!285}{999,\!999}= \frac{5 \cdot 142,\!857}{7 \cdot 142,\!857} = \frac{5}{7} \cdot \frac{\cancel{142,\!857}}{\cancel{142,\!857}}=\frac{5}{7}.$$Note that $714,\!285 = 5 \cdot 142,\!857$ and $999,\!999=7 \cdot 142,\!857$. The reciprocal of $\frac{5}{7}$ is $\frac{7}{5} = \boxed{1.4}.$