No problem, we've got 20274829 and 7907808 to multiply
20274829 × 7907808 = 7907808 × (20274829)
+ 7907808 × 9 what gives us 71170272
+ 7907808 × 20 that equals 158156160
+ 7907808 × 800 producing 6326246400
+ 7907808 × 4000 yielding 31631232000
+ 7907808 × 70000 resulting in 553546560000
+ 7907808 × 200000 producing 1581561600000
+ 7907808 × 0000000 giving us 0
+ 7907808 × 20000000 which equals 158156160000000

= 160329454964832
