Alright, let's solve this math problem step by step. First, we have the number 75. 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 75 and add it to itself 19 times.
Step 1: 0 + 75 = 75
Step 2: 75 + 75 = 150
Step 3: 150 + 75 = 225
Step 4: 225 + 75 = 300
Step 5: 300 + 75 = 375
Step 6: 375 + 75 = 450
Step 7: 450 + 75 = 525
Step 8: 525 + 75 = 600
Step 9: 600 + 75 = 675
Step 10: 675 + 75 = 750
Step 11: 750 + 75 = 825
Step 12: 825 + 75 = 900
Step 13: 900 + 75 = 975
Step 14: 975 + 75 = 1050
Step 15: 1050 + 75 = 1125
Step 16: 1125 + 75 = 1200
Step 17: 1200 + 75 = 1275
Step 18: 1275 + 75 = 1350
Step 19: 1350 + 75 = 1425

So, 75*19 = 1425