Alright, let's work through 70091524 times 74407931 step by step
70091524 × 74407931 = 74407931 × (70091524)
+ 74407931 × 4 what gives us 297631724
+ 74407931 × 20 that equals 1488158620
+ 74407931 × 500 resulting in 37203965500
+ 74407931 × 1000 giving us 74407931000
+ 74407931 × 90000 yielding 6696713790000
+ 74407931 × 000000 that equals 0
+ 74407931 × 0000000 what gives us 0
+ 74407931 × 70000000 yielding 5208555170000000

= 5215365281476844
