OK, let's crack this. We're given 767 and our task is to multiply it by 23. Essentially, we'll be adding 767 to itself 23 times.
Step 1: 0 + 767 = 767
Step 2: 767 + 767 = 1534
Step 3: 1534 + 767 = 2301
Step 4: 2301 + 767 = 3068
Step 5: 3068 + 767 = 3835
Step 6: 3835 + 767 = 4602
Step 7: 4602 + 767 = 5369
Step 8: 5369 + 767 = 6136
Step 9: 6136 + 767 = 6903
Step 10: 6903 + 767 = 7670
Step 11: 7670 + 767 = 8437
Step 12: 8437 + 767 = 9204
Step 13: 9204 + 767 = 9971
Step 14: 9971 + 767 = 10738
Step 15: 10738 + 767 = 11505
Step 16: 11505 + 767 = 12272
Step 17: 12272 + 767 = 13039
Step 18: 13039 + 767 = 13806
Step 19: 13806 + 767 = 14573
Step 20: 14573 + 767 = 15340
Step 21: 15340 + 767 = 16107
Step 22: 16107 + 767 = 16874
Step 23: 16874 + 767 = 17641

So, 767*23 = 17641