Alright, let's work through 78428571 times 13034635 step by step
78428571 × 13034635 = 13034635 × (78428571)
+ 13034635 × 1 yielding 13034635
+ 13034635 × 70 that results in 912424450
+ 13034635 × 500 giving us 6517317500
+ 13034635 × 8000 what gives us 104277080000
+ 13034635 × 20000 giving us 260692700000
+ 13034635 × 400000 that is equal 5213854000000
+ 13034635 × 8000000 which equals 104277080000000
+ 13034635 × 70000000 yielding 912424450000000

= 1022287796556585
