Alright, let's work through 64542257 times 84422441 step by step
64542257 × 84422441 = 84422441 × (64542257)
+ 84422441 × 7 that is equal 590957087
+ 84422441 × 50 that is equal 4221122050
+ 84422441 × 200 producing 16884488200
+ 84422441 × 2000 yielding 168844882000
+ 84422441 × 40000 that equals 3376897640000
+ 84422441 × 500000 what gives us 42211220500000
+ 84422441 × 4000000 that is equal 337689764000000
+ 84422441 × 60000000 that results in 5065346460000000

= 5448814883589337
