Alright, let's work through 78798220 times 77470495 step by step
78798220 × 77470495 = 77470495 × (78798220)
+ 77470495 × 0 that is equal 0
+ 77470495 × 20 producing 1549409900
+ 77470495 × 200 that equals 15494099000
+ 77470495 × 8000 resulting in 619763960000
+ 77470495 × 90000 that results in 6972344550000
+ 77470495 × 700000 which equals 54229346500000
+ 77470495 × 8000000 resulting in 619763960000000
+ 77470495 × 70000000 that equals 5422934650000000

= 6104537108518900
