Sure thing! We've got 123 and we're gonna multiply it by 23. That's the same as adding 123 to itself 23 times.
Step 1: 0 + 123 = 123
Step 2: 123 + 123 = 246
Step 3: 246 + 123 = 369
Step 4: 369 + 123 = 492
Step 5: 492 + 123 = 615
Step 6: 615 + 123 = 738
Step 7: 738 + 123 = 861
Step 8: 861 + 123 = 984
Step 9: 984 + 123 = 1107
Step 10: 1107 + 123 = 1230
Step 11: 1230 + 123 = 1353
Step 12: 1353 + 123 = 1476
Step 13: 1476 + 123 = 1599
Step 14: 1599 + 123 = 1722
Step 15: 1722 + 123 = 1845
Step 16: 1845 + 123 = 1968
Step 17: 1968 + 123 = 2091
Step 18: 2091 + 123 = 2214
Step 19: 2214 + 123 = 2337
Step 20: 2337 + 123 = 2460
Step 21: 2460 + 123 = 2583
Step 22: 2583 + 123 = 2706
Step 23: 2706 + 123 = 2829

So, 123*23 = 2829