Help converting decimal to fraction

   0.0000015390771693=80,927/52,581,508,981      

0.0000015390771693 As a fraction

$\begin{array}{|rcll|} \hline \dfrac{15390771693} { 10000000000000000 }&=& 1.5390771693 \times 10^{-6} \\\\ \dfrac{1}{ 649740} &\approx & 1.539077169329\ldots \times 10^{-6} \\ \hline \end{array}$