Alright, let's work through 20316653 times 87011924 step by step
20316653 × 87011924 = 87011924 × (20316653)
+ 87011924 × 3 giving us 261035772
+ 87011924 × 50 giving us 4350596200
+ 87011924 × 600 that is equal 52207154400
+ 87011924 × 6000 which equals 522071544000
+ 87011924 × 10000 that results in 870119240000
+ 87011924 × 300000 resulting in 26103577200000
+ 87011924 × 0000000 what gives us 0
+ 87011924 × 20000000 that results in 1740238480000000

= 1767791066770372
