Answer :
[tex]1\underbrace{,678,483.}_{\leftarrow6}0043=1.6784830043\times10^6[/tex]
[tex]the\ scientific\ notation:\ \ \ a\cdot 10^n\ \ \ and\ \ \ a\in\langle1,10),\ \ \ n\in I\\\\1,678,483.0043=1.6784830043\cdot10^6[/tex]
