Alright, let's work through 70415723 times 5421542 step by step
70415723 × 5421542 = 5421542 × (70415723)
+ 5421542 × 3 giving us 16264626
+ 5421542 × 20 giving us 108430840
+ 5421542 × 700 which equals 3795079400
+ 5421542 × 5000 that is equal 27107710000
+ 5421542 × 10000 that is equal 54215420000
+ 5421542 × 400000 resulting in 2168616800000
+ 5421542 × 0000000 resulting in 0
+ 5421542 × 70000000 giving us 379507940000000

= 381761799704866
