Alright, let's work through 69091987 times 60159518 step by step
69091987 × 60159518 = 60159518 × (69091987)
+ 60159518 × 7 that results in 421116626
+ 60159518 × 80 resulting in 4812761440
+ 60159518 × 900 that results in 54143566200
+ 60159518 × 1000 yielding 60159518000
+ 60159518 × 90000 what gives us 5414356620000
+ 60159518 × 000000 yielding 0
+ 60159518 × 9000000 that equals 541435662000000
+ 60159518 × 60000000 giving us 3609571080000000

= 4156540635582266
