[tex]140 ~~~\Longrightarrow~~~1+4+0 = 5 ~~~\Longrightarrow~~~140 ~\vdots ~5 ~~~\Longrightarrow~~~140:5=28 \\ \\
230 ~~~\Longrightarrow~~~2+3+0 = 5 ~~~\Longrightarrow~~~230 ~\vdots ~5 ~~~\Longrightarrow~~~230:5=46 \\ \\
320 ~~~\Longrightarrow~~~3+2+0 = 5 ~~~\Longrightarrow~~~320 ~\vdots ~5 ~~~\Longrightarrow~~~320:5=64 \\ \\
410 ~~~\Longrightarrow~~~4+1+0 = 5 ~~~\Longrightarrow~~~410 ~\vdots ~5 ~~~\Longrightarrow~~~410:5=82[/tex]