Sure thing! We've got 117 and we're gonna multiply it by 28. That's the same as adding 117 to itself 28 times.
Step 1: 0 + 117 = 117
Step 2: 117 + 117 = 234
Step 3: 234 + 117 = 351
Step 4: 351 + 117 = 468
Step 5: 468 + 117 = 585
Step 6: 585 + 117 = 702
Step 7: 702 + 117 = 819
Step 8: 819 + 117 = 936
Step 9: 936 + 117 = 1053
Step 10: 1053 + 117 = 1170
Step 11: 1170 + 117 = 1287
Step 12: 1287 + 117 = 1404
Step 13: 1404 + 117 = 1521
Step 14: 1521 + 117 = 1638
Step 15: 1638 + 117 = 1755
Step 16: 1755 + 117 = 1872
Step 17: 1872 + 117 = 1989
Step 18: 1989 + 117 = 2106
Step 19: 2106 + 117 = 2223
Step 20: 2223 + 117 = 2340
Step 21: 2340 + 117 = 2457
Step 22: 2457 + 117 = 2574
Step 23: 2574 + 117 = 2691
Step 24: 2691 + 117 = 2808
Step 25: 2808 + 117 = 2925
Step 26: 2925 + 117 = 3042
Step 27: 3042 + 117 = 3159
Step 28: 3159 + 117 = 3276

So, 117*28 = 3276