OK, let's work through this together. We're starting with 618 and we're going to multiply it by 5, which means we add 618 to itself 5 times.
Step 1: 0 + 618 = 618
Step 2: 618 + 618 = 1236
Step 3: 1236 + 618 = 1854
Step 4: 1854 + 618 = 2472
Step 5: 2472 + 618 = 3090

So, 618*5 = 3090