Alright, let's work through 26708117 times 99813991 step by step
26708117 × 99813991 = 99813991 × (26708117)
+ 99813991 × 7 resulting in 698697937
+ 99813991 × 10 giving us 998139910
+ 99813991 × 100 which equals 9981399100
+ 99813991 × 8000 that equals 798511928000
+ 99813991 × 00000 what gives us 0
+ 99813991 × 700000 which equals 69869793700000
+ 99813991 × 6000000 which equals 598883946000000
+ 99813991 × 20000000 that is equal 1996279820000000

= 2665843749864947
