Alright, let's work through 20786103 times 80097291 step by step
20786103 × 80097291 = 80097291 × (20786103)
+ 80097291 × 3 that results in 240291873
+ 80097291 × 00 yielding 0
+ 80097291 × 100 resulting in 8009729100
+ 80097291 × 6000 resulting in 480583746000
+ 80097291 × 80000 that equals 6407783280000
+ 80097291 × 700000 that is equal 56068103700000
+ 80097291 × 0000000 which equals 0
+ 80097291 × 20000000 which equals 1601945820000000

= 1664910540746973
