Alright, let's work through 26811678 times 99263115 step by step
26811678 × 99263115 = 99263115 × (26811678)
+ 99263115 × 8 yielding 794104920
+ 99263115 × 70 that equals 6948418050
+ 99263115 × 600 resulting in 59557869000
+ 99263115 × 1000 which equals 99263115000
+ 99263115 × 10000 giving us 992631150000
+ 99263115 × 800000 that equals 79410492000000
+ 99263115 × 6000000 what gives us 595578690000000
+ 99263115 × 20000000 producing 1985262300000000

= 2661410676656970
