Alright, let's work through 8289 times 8021 step by step
8289 × 8021 = 8021 × (8289)
+ 8021 × 9 resulting in 72189
+ 8021 × 80 yielding 641680
+ 8021 × 200 that is equal 1604200
+ 8021 × 8000 giving us 64168000

= 66486069
