Let's get this math done. We have 241 and we're going to multiply it by 18. This is the same as taking 241 and adding it to itself 18 times.
Step 1: 0 + 241 = 241
Step 2: 241 + 241 = 482
Step 3: 482 + 241 = 723
Step 4: 723 + 241 = 964
Step 5: 964 + 241 = 1205
Step 6: 1205 + 241 = 1446
Step 7: 1446 + 241 = 1687
Step 8: 1687 + 241 = 1928
Step 9: 1928 + 241 = 2169
Step 10: 2169 + 241 = 2410
Step 11: 2410 + 241 = 2651
Step 12: 2651 + 241 = 2892
Step 13: 2892 + 241 = 3133
Step 14: 3133 + 241 = 3374
Step 15: 3374 + 241 = 3615
Step 16: 3615 + 241 = 3856
Step 17: 3856 + 241 = 4097
Step 18: 4097 + 241 = 4338

So, 241*18 = 4338