Alright, let's work through 82907372 times 64738430 step by step
82907372 × 64738430 = 64738430 × (82907372)
+ 64738430 × 2 that is equal 129476860
+ 64738430 × 70 which equals 4531690100
+ 64738430 × 300 resulting in 19421529000
+ 64738430 × 7000 what gives us 453169010000
+ 64738430 × 00000 which equals 0
+ 64738430 × 900000 yielding 58264587000000
+ 64738430 × 2000000 what gives us 129476860000000
+ 64738430 × 80000000 that equals 5179074400000000

= 5367293098705960
