Sure thing, let's get straight to it. We start with 354 and we're going to multiply it by 7, which means adding 354 to itself 7 times.
Step 1: 0 + 354 = 354
Step 2: 354 + 354 = 708
Step 3: 708 + 354 = 1062
Step 4: 1062 + 354 = 1416
Step 5: 1416 + 354 = 1770
Step 6: 1770 + 354 = 2124
Step 7: 2124 + 354 = 2478

So, 354*7 = 2478