Alright, let's work through 20681461 times 10387646 step by step
20681461 × 10387646 = 10387646 × (20681461)
+ 10387646 × 1 that results in 10387646
+ 10387646 × 60 that equals 623258760
+ 10387646 × 400 which equals 4155058400
+ 10387646 × 1000 what gives us 10387646000
+ 10387646 × 80000 that results in 831011680000
+ 10387646 × 600000 resulting in 6232587600000
+ 10387646 × 0000000 that is equal 0
+ 10387646 × 20000000 what gives us 207752920000000

= 214831695630806
