Sure thing! We've got 49 and we're gonna multiply it by 7. That's the same as adding 49 to itself 7 times.
Step 1: 0 + 49 = 49
Step 2: 49 + 49 = 98
Step 3: 98 + 49 = 147
Step 4: 147 + 49 = 196
Step 5: 196 + 49 = 245
Step 6: 245 + 49 = 294
Step 7: 294 + 49 = 343

So, 49*7 = 343