Alright, let's work through 86754989 times 26159860 step by step
86754989 × 26159860 = 26159860 × (86754989)
+ 26159860 × 9 that results in 235438740
+ 26159860 × 80 what gives us 2092788800
+ 26159860 × 900 that results in 23543874000
+ 26159860 × 4000 yielding 104639440000
+ 26159860 × 50000 resulting in 1307993000000
+ 26159860 × 700000 resulting in 18311902000000
+ 26159860 × 6000000 which equals 156959160000000
+ 26159860 × 80000000 that results in 2092788800000000

= 2269498366541540
