Sure thing, let's get straight to it. We start with 381 and we're going to multiply it by 39, which means adding 381 to itself 39 times.
Step 1: 0 + 381 = 381
Step 2: 381 + 381 = 762
Step 3: 762 + 381 = 1143
Step 4: 1143 + 381 = 1524
Step 5: 1524 + 381 = 1905
Step 6: 1905 + 381 = 2286
Step 7: 2286 + 381 = 2667
Step 8: 2667 + 381 = 3048
Step 9: 3048 + 381 = 3429
Step 10: 3429 + 381 = 3810
Step 11: 3810 + 381 = 4191
Step 12: 4191 + 381 = 4572
Step 13: 4572 + 381 = 4953
Step 14: 4953 + 381 = 5334
Step 15: 5334 + 381 = 5715
Step 16: 5715 + 381 = 6096
Step 17: 6096 + 381 = 6477
Step 18: 6477 + 381 = 6858
Step 19: 6858 + 381 = 7239
Step 20: 7239 + 381 = 7620
Step 21: 7620 + 381 = 8001
Step 22: 8001 + 381 = 8382
Step 23: 8382 + 381 = 8763
Step 24: 8763 + 381 = 9144
Step 25: 9144 + 381 = 9525
Step 26: 9525 + 381 = 9906
Step 27: 9906 + 381 = 10287
Step 28: 10287 + 381 = 10668
Step 29: 10668 + 381 = 11049
Step 30: 11049 + 381 = 11430
Step 31: 11430 + 381 = 11811
Step 32: 11811 + 381 = 12192
Step 33: 12192 + 381 = 12573
Step 34: 12573 + 381 = 12954
Step 35: 12954 + 381 = 13335
Step 36: 13335 + 381 = 13716
Step 37: 13716 + 381 = 14097
Step 38: 14097 + 381 = 14478
Step 39: 14478 + 381 = 14859

So, 381*39 = 14859