Alright, let's work through 8377681 times 54841984 step by step
8377681 × 54841984 = 54841984 × (8377681)
+ 54841984 × 1 producing 54841984
+ 54841984 × 80 that equals 4387358720
+ 54841984 × 600 what gives us 32905190400
+ 54841984 × 7000 which equals 383893888000
+ 54841984 × 70000 yielding 3838938880000
+ 54841984 × 300000 giving us 16452595200000
+ 54841984 × 8000000 that is equal 438735872000000

= 459448647359104
