Alright, let's work through 6445 times 4401 step by step
6445 × 4401 = 4401 × (6445)
+ 4401 × 5 that results in 22005
+ 4401 × 40 yielding 176040
+ 4401 × 400 resulting in 1760400
+ 4401 × 6000 yielding 26406000

= 28364445
