What is the $2021\text{st}$ digit of $0.\overset{.}{\mathop{5}}3846\overset{.}{\mathop{2}}$ after the decimal point?  Pip\textquotesingle s answer:  $$2021\div 6=336\cdots \cdots 5$$  The $2021\text{st}$ digit is $5$. 
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