849053
Explanation
Step 1
[tex]\begin{gathered} 8\cdot100000=800000 \\ 4\cdot10000=40000 \\ 9\cdot1000=9000 \\ 5\cdot10=50 \\ 3\cdot1=3 \end{gathered}[/tex]Step 2
make the addition of the partial results
[tex]\begin{gathered} \text{total}=800000+40000+9000+50+3 \\ \text{total}=849053 \end{gathered}[/tex]I hope this helps you