Alright, let's work through 70444385 times 72085038 step by step
70444385 × 72085038 = 72085038 × (70444385)
+ 72085038 × 5 what gives us 360425190
+ 72085038 × 80 giving us 5766803040
+ 72085038 × 300 that equals 21625511400
+ 72085038 × 4000 which equals 288340152000
+ 72085038 × 40000 producing 2883401520000
+ 72085038 × 400000 producing 28834015200000
+ 72085038 × 0000000 which equals 0
+ 72085038 × 70000000 resulting in 5045952660000000

= 5077986169611630
