how do you solve this ?

1mol of K contains 6.022×10^23atoms
0.0246 mol contains:-
[tex]\\ \sf\longmapsto 0.0246\times Avagadro\:no[/tex]
[tex]\\ \sf\longmapsto 0.0246\times 6.022\times 10^{23}[/tex]
[tex]\\ \sf\longmapsto 1.37302\times 10^{22}[/tex]