OK, let's crack this. We're given 454 and our task is to multiply it by 30. Essentially, we'll be adding 454 to itself 30 times.
Step 1: 0 + 454 = 454
Step 2: 454 + 454 = 908
Step 3: 908 + 454 = 1362
Step 4: 1362 + 454 = 1816
Step 5: 1816 + 454 = 2270
Step 6: 2270 + 454 = 2724
Step 7: 2724 + 454 = 3178
Step 8: 3178 + 454 = 3632
Step 9: 3632 + 454 = 4086
Step 10: 4086 + 454 = 4540
Step 11: 4540 + 454 = 4994
Step 12: 4994 + 454 = 5448
Step 13: 5448 + 454 = 5902
Step 14: 5902 + 454 = 6356
Step 15: 6356 + 454 = 6810
Step 16: 6810 + 454 = 7264
Step 17: 7264 + 454 = 7718
Step 18: 7718 + 454 = 8172
Step 19: 8172 + 454 = 8626
Step 20: 8626 + 454 = 9080
Step 21: 9080 + 454 = 9534
Step 22: 9534 + 454 = 9988
Step 23: 9988 + 454 = 10442
Step 24: 10442 + 454 = 10896
Step 25: 10896 + 454 = 11350
Step 26: 11350 + 454 = 11804
Step 27: 11804 + 454 = 12258
Step 28: 12258 + 454 = 12712
Step 29: 12712 + 454 = 13166
Step 30: 13166 + 454 = 13620

So, 454*30 = 13620