Alright, let's solve this math problem step by step. First, we have the number 598. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 40. So, we're going to take the number 598 and add it to itself 40 times.
Step 1: 0 + 598 = 598
Step 2: 598 + 598 = 1196
Step 3: 1196 + 598 = 1794
Step 4: 1794 + 598 = 2392
Step 5: 2392 + 598 = 2990
Step 6: 2990 + 598 = 3588
Step 7: 3588 + 598 = 4186
Step 8: 4186 + 598 = 4784
Step 9: 4784 + 598 = 5382
Step 10: 5382 + 598 = 5980
Step 11: 5980 + 598 = 6578
Step 12: 6578 + 598 = 7176
Step 13: 7176 + 598 = 7774
Step 14: 7774 + 598 = 8372
Step 15: 8372 + 598 = 8970
Step 16: 8970 + 598 = 9568
Step 17: 9568 + 598 = 10166
Step 18: 10166 + 598 = 10764
Step 19: 10764 + 598 = 11362
Step 20: 11362 + 598 = 11960
Step 21: 11960 + 598 = 12558
Step 22: 12558 + 598 = 13156
Step 23: 13156 + 598 = 13754
Step 24: 13754 + 598 = 14352
Step 25: 14352 + 598 = 14950
Step 26: 14950 + 598 = 15548
Step 27: 15548 + 598 = 16146
Step 28: 16146 + 598 = 16744
Step 29: 16744 + 598 = 17342
Step 30: 17342 + 598 = 17940
Step 31: 17940 + 598 = 18538
Step 32: 18538 + 598 = 19136
Step 33: 19136 + 598 = 19734
Step 34: 19734 + 598 = 20332
Step 35: 20332 + 598 = 20930
Step 36: 20930 + 598 = 21528
Step 37: 21528 + 598 = 22126
Step 38: 22126 + 598 = 22724
Step 39: 22724 + 598 = 23322
Step 40: 23322 + 598 = 23920

So, 598*40 = 23920