OK, let's work through this together. We're starting with 8 and we're going to multiply it by 19, which means we add 8 to itself 19 times.
Step 1: 0 + 8 = 8
Step 2: 8 + 8 = 16
Step 3: 16 + 8 = 24
Step 4: 24 + 8 = 32
Step 5: 32 + 8 = 40
Step 6: 40 + 8 = 48
Step 7: 48 + 8 = 56
Step 8: 56 + 8 = 64
Step 9: 64 + 8 = 72
Step 10: 72 + 8 = 80
Step 11: 80 + 8 = 88
Step 12: 88 + 8 = 96
Step 13: 96 + 8 = 104
Step 14: 104 + 8 = 112
Step 15: 112 + 8 = 120
Step 16: 120 + 8 = 128
Step 17: 128 + 8 = 136
Step 18: 136 + 8 = 144
Step 19: 144 + 8 = 152

So, 8*19 = 152