Alright, let's work through 4160 times 7428 step by step
4160 × 7428 = 7428 × (4160)
+ 7428 × 0 that is equal 0
+ 7428 × 60 that is equal 445680
+ 7428 × 100 which equals 742800
+ 7428 × 4000 producing 29712000

= 30900480
