Let's roll up our sleeves and solve this. We have 68 and we're going to multiply it by 30, essentially adding 68 to itself 30 times.
Step 1: 0 + 68 = 68
Step 2: 68 + 68 = 136
Step 3: 136 + 68 = 204
Step 4: 204 + 68 = 272
Step 5: 272 + 68 = 340
Step 6: 340 + 68 = 408
Step 7: 408 + 68 = 476
Step 8: 476 + 68 = 544
Step 9: 544 + 68 = 612
Step 10: 612 + 68 = 680
Step 11: 680 + 68 = 748
Step 12: 748 + 68 = 816
Step 13: 816 + 68 = 884
Step 14: 884 + 68 = 952
Step 15: 952 + 68 = 1020
Step 16: 1020 + 68 = 1088
Step 17: 1088 + 68 = 1156
Step 18: 1156 + 68 = 1224
Step 19: 1224 + 68 = 1292
Step 20: 1292 + 68 = 1360
Step 21: 1360 + 68 = 1428
Step 22: 1428 + 68 = 1496
Step 23: 1496 + 68 = 1564
Step 24: 1564 + 68 = 1632
Step 25: 1632 + 68 = 1700
Step 26: 1700 + 68 = 1768
Step 27: 1768 + 68 = 1836
Step 28: 1836 + 68 = 1904
Step 29: 1904 + 68 = 1972
Step 30: 1972 + 68 = 2040

So, 68*30 = 2040