Alright, let's solve this math problem step by step. First, we have the number 31. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 53. So, we're going to take the number 31 and add it to itself 53 times.
Step 1: 0 + 31 = 31
Step 2: 31 + 31 = 62
Step 3: 62 + 31 = 93
Step 4: 93 + 31 = 124
Step 5: 124 + 31 = 155
Step 6: 155 + 31 = 186
Step 7: 186 + 31 = 217
Step 8: 217 + 31 = 248
Step 9: 248 + 31 = 279
Step 10: 279 + 31 = 310
Step 11: 310 + 31 = 341
Step 12: 341 + 31 = 372
Step 13: 372 + 31 = 403
Step 14: 403 + 31 = 434
Step 15: 434 + 31 = 465
Step 16: 465 + 31 = 496
Step 17: 496 + 31 = 527
Step 18: 527 + 31 = 558
Step 19: 558 + 31 = 589
Step 20: 589 + 31 = 620
Step 21: 620 + 31 = 651
Step 22: 651 + 31 = 682
Step 23: 682 + 31 = 713
Step 24: 713 + 31 = 744
Step 25: 744 + 31 = 775
Step 26: 775 + 31 = 806
Step 27: 806 + 31 = 837
Step 28: 837 + 31 = 868
Step 29: 868 + 31 = 899
Step 30: 899 + 31 = 930
Step 31: 930 + 31 = 961
Step 32: 961 + 31 = 992
Step 33: 992 + 31 = 1023
Step 34: 1023 + 31 = 1054
Step 35: 1054 + 31 = 1085
Step 36: 1085 + 31 = 1116
Step 37: 1116 + 31 = 1147
Step 38: 1147 + 31 = 1178
Step 39: 1178 + 31 = 1209
Step 40: 1209 + 31 = 1240
Step 41: 1240 + 31 = 1271
Step 42: 1271 + 31 = 1302
Step 43: 1302 + 31 = 1333
Step 44: 1333 + 31 = 1364
Step 45: 1364 + 31 = 1395
Step 46: 1395 + 31 = 1426
Step 47: 1426 + 31 = 1457
Step 48: 1457 + 31 = 1488
Step 49: 1488 + 31 = 1519
Step 50: 1519 + 31 = 1550
Step 51: 1550 + 31 = 1581
Step 52: 1581 + 31 = 1612
Step 53: 1612 + 31 = 1643

So, 31*53 = 1643