Sure thing! We've got 449 and we're gonna multiply it by 31. That's the same as adding 449 to itself 31 times.
Step 1: 0 + 449 = 449
Step 2: 449 + 449 = 898
Step 3: 898 + 449 = 1347
Step 4: 1347 + 449 = 1796
Step 5: 1796 + 449 = 2245
Step 6: 2245 + 449 = 2694
Step 7: 2694 + 449 = 3143
Step 8: 3143 + 449 = 3592
Step 9: 3592 + 449 = 4041
Step 10: 4041 + 449 = 4490
Step 11: 4490 + 449 = 4939
Step 12: 4939 + 449 = 5388
Step 13: 5388 + 449 = 5837
Step 14: 5837 + 449 = 6286
Step 15: 6286 + 449 = 6735
Step 16: 6735 + 449 = 7184
Step 17: 7184 + 449 = 7633
Step 18: 7633 + 449 = 8082
Step 19: 8082 + 449 = 8531
Step 20: 8531 + 449 = 8980
Step 21: 8980 + 449 = 9429
Step 22: 9429 + 449 = 9878
Step 23: 9878 + 449 = 10327
Step 24: 10327 + 449 = 10776
Step 25: 10776 + 449 = 11225
Step 26: 11225 + 449 = 11674
Step 27: 11674 + 449 = 12123
Step 28: 12123 + 449 = 12572
Step 29: 12572 + 449 = 13021
Step 30: 13021 + 449 = 13470
Step 31: 13470 + 449 = 13919

So, 449*31 = 13919