Sure thing! We've got 902 and we're gonna multiply it by 7. That's the same as adding 902 to itself 7 times.
Step 1: 0 + 902 = 902
Step 2: 902 + 902 = 1804
Step 3: 1804 + 902 = 2706
Step 4: 2706 + 902 = 3608
Step 5: 3608 + 902 = 4510
Step 6: 4510 + 902 = 5412
Step 7: 5412 + 902 = 6314

So, 902*7 = 6314