Alright, let's work through 8128 times 8135 step by step
8128 × 8135 = 8135 × (8128)
+ 8135 × 8 that is equal 65080
+ 8135 × 20 yielding 162700
+ 8135 × 100 which equals 813500
+ 8135 × 8000 which equals 65080000

= 66121280
