Alright, let's work through 78857662 times 70741307 step by step
78857662 × 70741307 = 70741307 × (78857662)
+ 70741307 × 2 that results in 141482614
+ 70741307 × 60 giving us 4244478420
+ 70741307 × 600 resulting in 42444784200
+ 70741307 × 7000 that equals 495189149000
+ 70741307 × 50000 that results in 3537065350000
+ 70741307 × 800000 giving us 56593045600000
+ 70741307 × 8000000 that equals 565930456000000
+ 70741307 × 70000000 yielding 4951891490000000

= 5578494076844234
