start by writing the multiplication in this form
start multiplying from right to left.
![3\cdot0=0](https://img.qammunity.org/2023/formulas/mathematics/high-school/rp07dsa79jisvl3miuox0rzes4nd71m73r.png)
write the first number down
continue by multiplying the next number from right to left
![8\cdot3=24](https://img.qammunity.org/2023/formulas/mathematics/college/4m8s32s4pf5mc9ce6uacjhfe08ntmfksyy.png)
write the number down, since there are no more numbers to multiply for write the wole number
this means that
![80\cdot3=240](https://img.qammunity.org/2023/formulas/mathematics/college/4p96l1d9d9piqngs0ue1ot84pppvv6at1t.png)