OK, let's work through this together. We're starting with 291 and we're going to multiply it by 45, which means we add 291 to itself 45 times.
Step 1: 0 + 291 = 291
Step 2: 291 + 291 = 582
Step 3: 582 + 291 = 873
Step 4: 873 + 291 = 1164
Step 5: 1164 + 291 = 1455
Step 6: 1455 + 291 = 1746
Step 7: 1746 + 291 = 2037
Step 8: 2037 + 291 = 2328
Step 9: 2328 + 291 = 2619
Step 10: 2619 + 291 = 2910
Step 11: 2910 + 291 = 3201
Step 12: 3201 + 291 = 3492
Step 13: 3492 + 291 = 3783
Step 14: 3783 + 291 = 4074
Step 15: 4074 + 291 = 4365
Step 16: 4365 + 291 = 4656
Step 17: 4656 + 291 = 4947
Step 18: 4947 + 291 = 5238
Step 19: 5238 + 291 = 5529
Step 20: 5529 + 291 = 5820
Step 21: 5820 + 291 = 6111
Step 22: 6111 + 291 = 6402
Step 23: 6402 + 291 = 6693
Step 24: 6693 + 291 = 6984
Step 25: 6984 + 291 = 7275
Step 26: 7275 + 291 = 7566
Step 27: 7566 + 291 = 7857
Step 28: 7857 + 291 = 8148
Step 29: 8148 + 291 = 8439
Step 30: 8439 + 291 = 8730
Step 31: 8730 + 291 = 9021
Step 32: 9021 + 291 = 9312
Step 33: 9312 + 291 = 9603
Step 34: 9603 + 291 = 9894
Step 35: 9894 + 291 = 10185
Step 36: 10185 + 291 = 10476
Step 37: 10476 + 291 = 10767
Step 38: 10767 + 291 = 11058
Step 39: 11058 + 291 = 11349
Step 40: 11349 + 291 = 11640
Step 41: 11640 + 291 = 11931
Step 42: 11931 + 291 = 12222
Step 43: 12222 + 291 = 12513
Step 44: 12513 + 291 = 12804
Step 45: 12804 + 291 = 13095

So, 291*45 = 13095