No problem, we've got 80159279 and 19487166 to multiply
80159279 × 19487166 = 19487166 × (80159279)
+ 19487166 × 9 what gives us 175384494
+ 19487166 × 70 that results in 1364101620
+ 19487166 × 200 which equals 3897433200
+ 19487166 × 9000 which equals 175384494000
+ 19487166 × 50000 that results in 974358300000
+ 19487166 × 100000 producing 1948716600000
+ 19487166 × 0000000 that equals 0
+ 19487166 × 80000000 yielding 1558973280000000

= 1562077176313314
