Alright, let's solve this math problem step by step. First, we have the number 338. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 39. So, we're going to take the number 338 and add it to itself 39 times.
Step 1: 0 + 338 = 338
Step 2: 338 + 338 = 676
Step 3: 676 + 338 = 1014
Step 4: 1014 + 338 = 1352
Step 5: 1352 + 338 = 1690
Step 6: 1690 + 338 = 2028
Step 7: 2028 + 338 = 2366
Step 8: 2366 + 338 = 2704
Step 9: 2704 + 338 = 3042
Step 10: 3042 + 338 = 3380
Step 11: 3380 + 338 = 3718
Step 12: 3718 + 338 = 4056
Step 13: 4056 + 338 = 4394
Step 14: 4394 + 338 = 4732
Step 15: 4732 + 338 = 5070
Step 16: 5070 + 338 = 5408
Step 17: 5408 + 338 = 5746
Step 18: 5746 + 338 = 6084
Step 19: 6084 + 338 = 6422
Step 20: 6422 + 338 = 6760
Step 21: 6760 + 338 = 7098
Step 22: 7098 + 338 = 7436
Step 23: 7436 + 338 = 7774
Step 24: 7774 + 338 = 8112
Step 25: 8112 + 338 = 8450
Step 26: 8450 + 338 = 8788
Step 27: 8788 + 338 = 9126
Step 28: 9126 + 338 = 9464
Step 29: 9464 + 338 = 9802
Step 30: 9802 + 338 = 10140
Step 31: 10140 + 338 = 10478
Step 32: 10478 + 338 = 10816
Step 33: 10816 + 338 = 11154
Step 34: 11154 + 338 = 11492
Step 35: 11492 + 338 = 11830
Step 36: 11830 + 338 = 12168
Step 37: 12168 + 338 = 12506
Step 38: 12506 + 338 = 12844
Step 39: 12844 + 338 = 13182

So, 338*39 = 13182