Alright, let's solve this math problem step by step. First, we have the number 782. 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 782 and add it to itself 31 times.
Step 1: 0 + 782 = 782
Step 2: 782 + 782 = 1564
Step 3: 1564 + 782 = 2346
Step 4: 2346 + 782 = 3128
Step 5: 3128 + 782 = 3910
Step 6: 3910 + 782 = 4692
Step 7: 4692 + 782 = 5474
Step 8: 5474 + 782 = 6256
Step 9: 6256 + 782 = 7038
Step 10: 7038 + 782 = 7820
Step 11: 7820 + 782 = 8602
Step 12: 8602 + 782 = 9384
Step 13: 9384 + 782 = 10166
Step 14: 10166 + 782 = 10948
Step 15: 10948 + 782 = 11730
Step 16: 11730 + 782 = 12512
Step 17: 12512 + 782 = 13294
Step 18: 13294 + 782 = 14076
Step 19: 14076 + 782 = 14858
Step 20: 14858 + 782 = 15640
Step 21: 15640 + 782 = 16422
Step 22: 16422 + 782 = 17204
Step 23: 17204 + 782 = 17986
Step 24: 17986 + 782 = 18768
Step 25: 18768 + 782 = 19550
Step 26: 19550 + 782 = 20332
Step 27: 20332 + 782 = 21114
Step 28: 21114 + 782 = 21896
Step 29: 21896 + 782 = 22678
Step 30: 22678 + 782 = 23460
Step 31: 23460 + 782 = 24242

So, 782*31 = 24242