Alright, let's work through 78899770 times 94543828 step by step
78899770 × 94543828 = 94543828 × (78899770)
+ 94543828 × 0 which equals 0
+ 94543828 × 70 giving us 6618067960
+ 94543828 × 700 that equals 66180679600
+ 94543828 × 9000 yielding 850894452000
+ 94543828 × 90000 giving us 8508944520000
+ 94543828 × 800000 what gives us 75635062400000
+ 94543828 × 8000000 giving us 756350624000000
+ 94543828 × 70000000 yielding 6618067960000000

= 7459486284119560
