Alright, let's solve this math problem step by step. First, we have the number 439. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 31. So, we're going to take the number 439 and add it to itself 31 times.
Step 1: 0 + 439 = 439
Step 2: 439 + 439 = 878
Step 3: 878 + 439 = 1317
Step 4: 1317 + 439 = 1756
Step 5: 1756 + 439 = 2195
Step 6: 2195 + 439 = 2634
Step 7: 2634 + 439 = 3073
Step 8: 3073 + 439 = 3512
Step 9: 3512 + 439 = 3951
Step 10: 3951 + 439 = 4390
Step 11: 4390 + 439 = 4829
Step 12: 4829 + 439 = 5268
Step 13: 5268 + 439 = 5707
Step 14: 5707 + 439 = 6146
Step 15: 6146 + 439 = 6585
Step 16: 6585 + 439 = 7024
Step 17: 7024 + 439 = 7463
Step 18: 7463 + 439 = 7902
Step 19: 7902 + 439 = 8341
Step 20: 8341 + 439 = 8780
Step 21: 8780 + 439 = 9219
Step 22: 9219 + 439 = 9658
Step 23: 9658 + 439 = 10097
Step 24: 10097 + 439 = 10536
Step 25: 10536 + 439 = 10975
Step 26: 10975 + 439 = 11414
Step 27: 11414 + 439 = 11853
Step 28: 11853 + 439 = 12292
Step 29: 12292 + 439 = 12731
Step 30: 12731 + 439 = 13170
Step 31: 13170 + 439 = 13609

So, 439*31 = 13609