Let's roll up our sleeves and solve this. We have 826 and we're going to multiply it by 29, essentially adding 826 to itself 29 times.
Step 1: 0 + 826 = 826
Step 2: 826 + 826 = 1652
Step 3: 1652 + 826 = 2478
Step 4: 2478 + 826 = 3304
Step 5: 3304 + 826 = 4130
Step 6: 4130 + 826 = 4956
Step 7: 4956 + 826 = 5782
Step 8: 5782 + 826 = 6608
Step 9: 6608 + 826 = 7434
Step 10: 7434 + 826 = 8260
Step 11: 8260 + 826 = 9086
Step 12: 9086 + 826 = 9912
Step 13: 9912 + 826 = 10738
Step 14: 10738 + 826 = 11564
Step 15: 11564 + 826 = 12390
Step 16: 12390 + 826 = 13216
Step 17: 13216 + 826 = 14042
Step 18: 14042 + 826 = 14868
Step 19: 14868 + 826 = 15694
Step 20: 15694 + 826 = 16520
Step 21: 16520 + 826 = 17346
Step 22: 17346 + 826 = 18172
Step 23: 18172 + 826 = 18998
Step 24: 18998 + 826 = 19824
Step 25: 19824 + 826 = 20650
Step 26: 20650 + 826 = 21476
Step 27: 21476 + 826 = 22302
Step 28: 22302 + 826 = 23128
Step 29: 23128 + 826 = 23954

So, 826*29 = 23954