Alright, let's work through 20807261 times 6278253 step by step
20807261 × 6278253 = 6278253 × (20807261)
+ 6278253 × 1 giving us 6278253
+ 6278253 × 60 producing 376695180
+ 6278253 × 200 giving us 1255650600
+ 6278253 × 7000 which equals 43947771000
+ 6278253 × 00000 that is equal 0
+ 6278253 × 800000 what gives us 5022602400000
+ 6278253 × 0000000 which equals 0
+ 6278253 × 20000000 what gives us 125565060000000

= 130633248795033
