OK, let's crack this. We're given 578 and our task is to multiply it by 25. Essentially, we'll be adding 578 to itself 25 times.
Step 1: 0 + 578 = 578
Step 2: 578 + 578 = 1156
Step 3: 1156 + 578 = 1734
Step 4: 1734 + 578 = 2312
Step 5: 2312 + 578 = 2890
Step 6: 2890 + 578 = 3468
Step 7: 3468 + 578 = 4046
Step 8: 4046 + 578 = 4624
Step 9: 4624 + 578 = 5202
Step 10: 5202 + 578 = 5780
Step 11: 5780 + 578 = 6358
Step 12: 6358 + 578 = 6936
Step 13: 6936 + 578 = 7514
Step 14: 7514 + 578 = 8092
Step 15: 8092 + 578 = 8670
Step 16: 8670 + 578 = 9248
Step 17: 9248 + 578 = 9826
Step 18: 9826 + 578 = 10404
Step 19: 10404 + 578 = 10982
Step 20: 10982 + 578 = 11560
Step 21: 11560 + 578 = 12138
Step 22: 12138 + 578 = 12716
Step 23: 12716 + 578 = 13294
Step 24: 13294 + 578 = 13872
Step 25: 13872 + 578 = 14450

So, 578*25 = 14450