Alright, let's work through 85182313 times 54844342 step by step
85182313 × 54844342 = 54844342 × (85182313)
+ 54844342 × 3 what gives us 164533026
+ 54844342 × 10 what gives us 548443420
+ 54844342 × 300 that results in 16453302600
+ 54844342 × 2000 producing 109688684000
+ 54844342 × 80000 producing 4387547360000
+ 54844342 × 100000 what gives us 5484434200000
+ 54844342 × 5000000 what gives us 274221710000000
+ 54844342 × 80000000 producing 4387547360000000

= 4671767906523046
