Alright, let's work through 84667851 times 42813793 step by step
84667851 × 42813793 = 42813793 × (84667851)
+ 42813793 × 1 that is equal 42813793
+ 42813793 × 50 which equals 2140689650
+ 42813793 × 800 yielding 34251034400
+ 42813793 × 7000 that is equal 299696551000
+ 42813793 × 60000 what gives us 2568827580000
+ 42813793 × 600000 yielding 25688275800000
+ 42813793 × 4000000 that results in 171255172000000
+ 42813793 × 80000000 that results in 3425103440000000

= 3624951846468843
