Alright, let's work through 6435 times 1211 step by step
6435 × 1211 = 1211 × (6435)
+ 1211 × 5 yielding 6055
+ 1211 × 30 that is equal 36330
+ 1211 × 400 producing 484400
+ 1211 × 6000 that results in 7266000

= 7792785
