Alright, let's solve this math problem step by step. First, we have the number 394. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 45. So, we're going to take the number 394 and add it to itself 45 times.
Step 1: 0 + 394 = 394
Step 2: 394 + 394 = 788
Step 3: 788 + 394 = 1182
Step 4: 1182 + 394 = 1576
Step 5: 1576 + 394 = 1970
Step 6: 1970 + 394 = 2364
Step 7: 2364 + 394 = 2758
Step 8: 2758 + 394 = 3152
Step 9: 3152 + 394 = 3546
Step 10: 3546 + 394 = 3940
Step 11: 3940 + 394 = 4334
Step 12: 4334 + 394 = 4728
Step 13: 4728 + 394 = 5122
Step 14: 5122 + 394 = 5516
Step 15: 5516 + 394 = 5910
Step 16: 5910 + 394 = 6304
Step 17: 6304 + 394 = 6698
Step 18: 6698 + 394 = 7092
Step 19: 7092 + 394 = 7486
Step 20: 7486 + 394 = 7880
Step 21: 7880 + 394 = 8274
Step 22: 8274 + 394 = 8668
Step 23: 8668 + 394 = 9062
Step 24: 9062 + 394 = 9456
Step 25: 9456 + 394 = 9850
Step 26: 9850 + 394 = 10244
Step 27: 10244 + 394 = 10638
Step 28: 10638 + 394 = 11032
Step 29: 11032 + 394 = 11426
Step 30: 11426 + 394 = 11820
Step 31: 11820 + 394 = 12214
Step 32: 12214 + 394 = 12608
Step 33: 12608 + 394 = 13002
Step 34: 13002 + 394 = 13396
Step 35: 13396 + 394 = 13790
Step 36: 13790 + 394 = 14184
Step 37: 14184 + 394 = 14578
Step 38: 14578 + 394 = 14972
Step 39: 14972 + 394 = 15366
Step 40: 15366 + 394 = 15760
Step 41: 15760 + 394 = 16154
Step 42: 16154 + 394 = 16548
Step 43: 16548 + 394 = 16942
Step 44: 16942 + 394 = 17336
Step 45: 17336 + 394 = 17730

So, 394*45 = 17730