Alright, let's solve this math problem step by step. First, we have the number 438. Next, we see the multiplication sign, which means we need to multiply something. And what are we multiplying it by? We multiply it by 23. So, we're going to take the number 438 and add it to itself 23 times.
Step 1: 0 + 438 = 438
Step 2: 438 + 438 = 876
Step 3: 876 + 438 = 1314
Step 4: 1314 + 438 = 1752
Step 5: 1752 + 438 = 2190
Step 6: 2190 + 438 = 2628
Step 7: 2628 + 438 = 3066
Step 8: 3066 + 438 = 3504
Step 9: 3504 + 438 = 3942
Step 10: 3942 + 438 = 4380
Step 11: 4380 + 438 = 4818
Step 12: 4818 + 438 = 5256
Step 13: 5256 + 438 = 5694
Step 14: 5694 + 438 = 6132
Step 15: 6132 + 438 = 6570
Step 16: 6570 + 438 = 7008
Step 17: 7008 + 438 = 7446
Step 18: 7446 + 438 = 7884
Step 19: 7884 + 438 = 8322
Step 20: 8322 + 438 = 8760
Step 21: 8760 + 438 = 9198
Step 22: 9198 + 438 = 9636
Step 23: 9636 + 438 = 10074

So, 438*23 = 10074