Alright, let's work through 6497969 times 77670793 step by step
6497969 × 77670793 = 77670793 × (6497969)
+ 77670793 × 9 that results in 699037137
+ 77670793 × 60 what gives us 4660247580
+ 77670793 × 900 that equals 69903713700
+ 77670793 × 7000 that equals 543695551000
+ 77670793 × 90000 that results in 6990371370000
+ 77670793 × 400000 giving us 31068317200000
+ 77670793 × 6000000 which equals 466024758000000

= 504702405119417
