Alright, let's work through 70721243 times 90690450 step by step
70721243 × 90690450 = 90690450 × (70721243)
+ 90690450 × 3 that results in 272071350
+ 90690450 × 40 giving us 3627618000
+ 90690450 × 200 producing 18138090000
+ 90690450 × 1000 yielding 90690450000
+ 90690450 × 20000 resulting in 1813809000000
+ 90690450 × 700000 that equals 63483315000000
+ 90690450 × 0000000 what gives us 0
+ 90690450 × 70000000 what gives us 6348331500000000

= 6413741352229350
