Alright, let's work through 78000642 times 98655352 step by step
78000642 × 98655352 = 98655352 × (78000642)
+ 98655352 × 2 that is equal 197310704
+ 98655352 × 40 that equals 3946214080
+ 98655352 × 600 resulting in 59193211200
+ 98655352 × 0000 yielding 0
+ 98655352 × 00000 resulting in 0
+ 98655352 × 000000 giving us 0
+ 98655352 × 8000000 that equals 789242816000000
+ 98655352 × 70000000 which equals 6905874640000000

= 7695180792735984
