Alright, let's work through 20797893 times 1270103 step by step
20797893 × 1270103 = 1270103 × (20797893)
+ 1270103 × 3 that equals 3810309
+ 1270103 × 90 resulting in 114309270
+ 1270103 × 800 what gives us 1016082400
+ 1270103 × 7000 that results in 8890721000
+ 1270103 × 90000 resulting in 114309270000
+ 1270103 × 700000 which equals 889072100000
+ 1270103 × 0000000 that equals 0
+ 1270103 × 20000000 producing 25402060000000

= 26415466292979
