Sure thing! We've got 386 and we're gonna multiply it by 45. That's the same as adding 386 to itself 45 times.
Step 1: 0 + 386 = 386
Step 2: 386 + 386 = 772
Step 3: 772 + 386 = 1158
Step 4: 1158 + 386 = 1544
Step 5: 1544 + 386 = 1930
Step 6: 1930 + 386 = 2316
Step 7: 2316 + 386 = 2702
Step 8: 2702 + 386 = 3088
Step 9: 3088 + 386 = 3474
Step 10: 3474 + 386 = 3860
Step 11: 3860 + 386 = 4246
Step 12: 4246 + 386 = 4632
Step 13: 4632 + 386 = 5018
Step 14: 5018 + 386 = 5404
Step 15: 5404 + 386 = 5790
Step 16: 5790 + 386 = 6176
Step 17: 6176 + 386 = 6562
Step 18: 6562 + 386 = 6948
Step 19: 6948 + 386 = 7334
Step 20: 7334 + 386 = 7720
Step 21: 7720 + 386 = 8106
Step 22: 8106 + 386 = 8492
Step 23: 8492 + 386 = 8878
Step 24: 8878 + 386 = 9264
Step 25: 9264 + 386 = 9650
Step 26: 9650 + 386 = 10036
Step 27: 10036 + 386 = 10422
Step 28: 10422 + 386 = 10808
Step 29: 10808 + 386 = 11194
Step 30: 11194 + 386 = 11580
Step 31: 11580 + 386 = 11966
Step 32: 11966 + 386 = 12352
Step 33: 12352 + 386 = 12738
Step 34: 12738 + 386 = 13124
Step 35: 13124 + 386 = 13510
Step 36: 13510 + 386 = 13896
Step 37: 13896 + 386 = 14282
Step 38: 14282 + 386 = 14668
Step 39: 14668 + 386 = 15054
Step 40: 15054 + 386 = 15440
Step 41: 15440 + 386 = 15826
Step 42: 15826 + 386 = 16212
Step 43: 16212 + 386 = 16598
Step 44: 16598 + 386 = 16984
Step 45: 16984 + 386 = 17370

So, 386*45 = 17370