Alright, let's work through 2128 times 4397 step by step
2128 × 4397 = 4397 × (2128)
+ 4397 × 8 producing 35176
+ 4397 × 20 resulting in 87940
+ 4397 × 100 yielding 439700
+ 4397 × 2000 yielding 8794000

= 9356816
