OK, let's crack this. We're given 386 and our task is to multiply it by 13. Essentially, we'll be adding 386 to itself 13 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

So, 386*13 = 5018