Let's roll up our sleeves and solve this. We have 74 and we're going to multiply it by 7, essentially adding 74 to itself 7 times.
Step 1: 0 + 74 = 74
Step 2: 74 + 74 = 148
Step 3: 148 + 74 = 222
Step 4: 222 + 74 = 296
Step 5: 296 + 74 = 370
Step 6: 370 + 74 = 444
Step 7: 444 + 74 = 518

So, 74*7 = 518