Alright, let's work through 70292461 times 20428440 step by step
70292461 × 20428440 = 20428440 × (70292461)
+ 20428440 × 1 what gives us 20428440
+ 20428440 × 60 yielding 1225706400
+ 20428440 × 400 which equals 8171376000
+ 20428440 × 2000 that results in 40856880000
+ 20428440 × 90000 that equals 1838559600000
+ 20428440 × 200000 which equals 4085688000000
+ 20428440 × 0000000 yielding 0
+ 20428440 × 70000000 resulting in 1429990800000000

= 1435965321990840
