Alright, let's work through 78678742 times 7192080 step by step
78678742 × 7192080 = 7192080 × (78678742)
+ 7192080 × 2 giving us 14384160
+ 7192080 × 40 that equals 287683200
+ 7192080 × 700 that results in 5034456000
+ 7192080 × 8000 giving us 57536640000
+ 7192080 × 70000 yielding 503445600000
+ 7192080 × 600000 which equals 4315248000000
+ 7192080 × 8000000 that is equal 57536640000000
+ 7192080 × 70000000 resulting in 503445600000000

= 565863806763360
