Alright, let's solve this math problem step by step. First, we have the number 771. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 19. So, we're going to take the number 771 and add it to itself 19 times.
Step 1: 0 + 771 = 771
Step 2: 771 + 771 = 1542
Step 3: 1542 + 771 = 2313
Step 4: 2313 + 771 = 3084
Step 5: 3084 + 771 = 3855
Step 6: 3855 + 771 = 4626
Step 7: 4626 + 771 = 5397
Step 8: 5397 + 771 = 6168
Step 9: 6168 + 771 = 6939
Step 10: 6939 + 771 = 7710
Step 11: 7710 + 771 = 8481
Step 12: 8481 + 771 = 9252
Step 13: 9252 + 771 = 10023
Step 14: 10023 + 771 = 10794
Step 15: 10794 + 771 = 11565
Step 16: 11565 + 771 = 12336
Step 17: 12336 + 771 = 13107
Step 18: 13107 + 771 = 13878
Step 19: 13878 + 771 = 14649

So, 771*19 = 14649