Alright, let's work through 77744480 times 79670597 step by step
77744480 × 79670597 = 79670597 × (77744480)
+ 79670597 × 0 that results in 0
+ 79670597 × 80 that equals 6373647760
+ 79670597 × 400 giving us 31868238800
+ 79670597 × 4000 what gives us 318682388000
+ 79670597 × 40000 that equals 3186823880000
+ 79670597 × 700000 that results in 55769417900000
+ 79670597 × 7000000 yielding 557694179000000
+ 79670597 × 70000000 that equals 5576941790000000

= 6193949135054560
