OK, let's crack this. We're given 278 and our task is to multiply it by 14. Essentially, we'll be adding 278 to itself 14 times.
Step 1: 0 + 278 = 278
Step 2: 278 + 278 = 556
Step 3: 556 + 278 = 834
Step 4: 834 + 278 = 1112
Step 5: 1112 + 278 = 1390
Step 6: 1390 + 278 = 1668
Step 7: 1668 + 278 = 1946
Step 8: 1946 + 278 = 2224
Step 9: 2224 + 278 = 2502
Step 10: 2502 + 278 = 2780
Step 11: 2780 + 278 = 3058
Step 12: 3058 + 278 = 3336
Step 13: 3336 + 278 = 3614
Step 14: 3614 + 278 = 3892

So, 278*14 = 3892