Alright, let's work through 70817178 times 54069321 step by step
70817178 × 54069321 = 54069321 × (70817178)
+ 54069321 × 8 resulting in 432554568
+ 54069321 × 70 giving us 3784852470
+ 54069321 × 100 which equals 5406932100
+ 54069321 × 7000 that equals 378485247000
+ 54069321 × 10000 that results in 540693210000
+ 54069321 × 800000 what gives us 43255456800000
+ 54069321 × 0000000 giving us 0
+ 54069321 × 70000000 what gives us 3784852470000000

= 3829036729596138
