Alright, let's work through 4128 times 7004 step by step
4128 × 7004 = 7004 × (4128)
+ 7004 × 8 producing 56032
+ 7004 × 20 what gives us 140080
+ 7004 × 100 producing 700400
+ 7004 × 4000 which equals 28016000

= 28912512
