OK, let's crack this. We're given 772 and our task is to multiply it by 29. Essentially, we'll be adding 772 to itself 29 times.
Step 1: 0 + 772 = 772
Step 2: 772 + 772 = 1544
Step 3: 1544 + 772 = 2316
Step 4: 2316 + 772 = 3088
Step 5: 3088 + 772 = 3860
Step 6: 3860 + 772 = 4632
Step 7: 4632 + 772 = 5404
Step 8: 5404 + 772 = 6176
Step 9: 6176 + 772 = 6948
Step 10: 6948 + 772 = 7720
Step 11: 7720 + 772 = 8492
Step 12: 8492 + 772 = 9264
Step 13: 9264 + 772 = 10036
Step 14: 10036 + 772 = 10808
Step 15: 10808 + 772 = 11580
Step 16: 11580 + 772 = 12352
Step 17: 12352 + 772 = 13124
Step 18: 13124 + 772 = 13896
Step 19: 13896 + 772 = 14668
Step 20: 14668 + 772 = 15440
Step 21: 15440 + 772 = 16212
Step 22: 16212 + 772 = 16984
Step 23: 16984 + 772 = 17756
Step 24: 17756 + 772 = 18528
Step 25: 18528 + 772 = 19300
Step 26: 19300 + 772 = 20072
Step 27: 20072 + 772 = 20844
Step 28: 20844 + 772 = 21616
Step 29: 21616 + 772 = 22388

So, 772*29 = 22388