Let's roll up our sleeves and solve this. We have 78 and we're going to multiply it by 6, essentially adding 78 to itself 6 times.
Step 1: 0 + 78 = 78
Step 2: 78 + 78 = 156
Step 3: 156 + 78 = 234
Step 4: 234 + 78 = 312
Step 5: 312 + 78 = 390
Step 6: 390 + 78 = 468

So, 78*6 = 468