Alright, let's work through 70222427 times 5408271 step by step
70222427 × 5408271 = 5408271 × (70222427)
+ 5408271 × 7 resulting in 37857897
+ 5408271 × 20 resulting in 108165420
+ 5408271 × 400 yielding 2163308400
+ 5408271 × 2000 that is equal 10816542000
+ 5408271 × 20000 resulting in 108165420000
+ 5408271 × 200000 that results in 1081654200000
+ 5408271 × 0000000 yielding 0
+ 5408271 × 70000000 which equals 378578970000000

= 379781915493717
