Let's roll up our sleeves and solve this. We have 218 and we're going to multiply it by 25, essentially adding 218 to itself 25 times.
Step 1: 0 + 218 = 218
Step 2: 218 + 218 = 436
Step 3: 436 + 218 = 654
Step 4: 654 + 218 = 872
Step 5: 872 + 218 = 1090
Step 6: 1090 + 218 = 1308
Step 7: 1308 + 218 = 1526
Step 8: 1526 + 218 = 1744
Step 9: 1744 + 218 = 1962
Step 10: 1962 + 218 = 2180
Step 11: 2180 + 218 = 2398
Step 12: 2398 + 218 = 2616
Step 13: 2616 + 218 = 2834
Step 14: 2834 + 218 = 3052
Step 15: 3052 + 218 = 3270
Step 16: 3270 + 218 = 3488
Step 17: 3488 + 218 = 3706
Step 18: 3706 + 218 = 3924
Step 19: 3924 + 218 = 4142
Step 20: 4142 + 218 = 4360
Step 21: 4360 + 218 = 4578
Step 22: 4578 + 218 = 4796
Step 23: 4796 + 218 = 5014
Step 24: 5014 + 218 = 5232
Step 25: 5232 + 218 = 5450

So, 218*25 = 5450