OK, let's work through this together. We're starting with 883 and we're going to multiply it by 26, which means we add 883 to itself 26 times.
Step 1: 0 + 883 = 883
Step 2: 883 + 883 = 1766
Step 3: 1766 + 883 = 2649
Step 4: 2649 + 883 = 3532
Step 5: 3532 + 883 = 4415
Step 6: 4415 + 883 = 5298
Step 7: 5298 + 883 = 6181
Step 8: 6181 + 883 = 7064
Step 9: 7064 + 883 = 7947
Step 10: 7947 + 883 = 8830
Step 11: 8830 + 883 = 9713
Step 12: 9713 + 883 = 10596
Step 13: 10596 + 883 = 11479
Step 14: 11479 + 883 = 12362
Step 15: 12362 + 883 = 13245
Step 16: 13245 + 883 = 14128
Step 17: 14128 + 883 = 15011
Step 18: 15011 + 883 = 15894
Step 19: 15894 + 883 = 16777
Step 20: 16777 + 883 = 17660
Step 21: 17660 + 883 = 18543
Step 22: 18543 + 883 = 19426
Step 23: 19426 + 883 = 20309
Step 24: 20309 + 883 = 21192
Step 25: 21192 + 883 = 22075
Step 26: 22075 + 883 = 22958

So, 883*26 = 22958