Alright, let's solve this math problem step by step. First, we have the number 413. 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 413 and add it to itself 45 times.
Step 1: 0 + 413 = 413
Step 2: 413 + 413 = 826
Step 3: 826 + 413 = 1239
Step 4: 1239 + 413 = 1652
Step 5: 1652 + 413 = 2065
Step 6: 2065 + 413 = 2478
Step 7: 2478 + 413 = 2891
Step 8: 2891 + 413 = 3304
Step 9: 3304 + 413 = 3717
Step 10: 3717 + 413 = 4130
Step 11: 4130 + 413 = 4543
Step 12: 4543 + 413 = 4956
Step 13: 4956 + 413 = 5369
Step 14: 5369 + 413 = 5782
Step 15: 5782 + 413 = 6195
Step 16: 6195 + 413 = 6608
Step 17: 6608 + 413 = 7021
Step 18: 7021 + 413 = 7434
Step 19: 7434 + 413 = 7847
Step 20: 7847 + 413 = 8260
Step 21: 8260 + 413 = 8673
Step 22: 8673 + 413 = 9086
Step 23: 9086 + 413 = 9499
Step 24: 9499 + 413 = 9912
Step 25: 9912 + 413 = 10325
Step 26: 10325 + 413 = 10738
Step 27: 10738 + 413 = 11151
Step 28: 11151 + 413 = 11564
Step 29: 11564 + 413 = 11977
Step 30: 11977 + 413 = 12390
Step 31: 12390 + 413 = 12803
Step 32: 12803 + 413 = 13216
Step 33: 13216 + 413 = 13629
Step 34: 13629 + 413 = 14042
Step 35: 14042 + 413 = 14455
Step 36: 14455 + 413 = 14868
Step 37: 14868 + 413 = 15281
Step 38: 15281 + 413 = 15694
Step 39: 15694 + 413 = 16107
Step 40: 16107 + 413 = 16520
Step 41: 16520 + 413 = 16933
Step 42: 16933 + 413 = 17346
Step 43: 17346 + 413 = 17759
Step 44: 17759 + 413 = 18172
Step 45: 18172 + 413 = 18585

So, 413*45 = 18585