Alright, let's work through 78871028 times 43784765 step by step
78871028 × 43784765 = 43784765 × (78871028)
+ 43784765 × 8 resulting in 350278120
+ 43784765 × 20 which equals 875695300
+ 43784765 × 000 yielding 0
+ 43784765 × 1000 that equals 43784765000
+ 43784765 × 70000 that equals 3064933550000
+ 43784765 × 800000 producing 35027812000000
+ 43784765 × 8000000 yielding 350278120000000
+ 43784765 × 70000000 resulting in 3064933550000000

= 3453349426288420
