Alright, let's work through 80241958 times 21052884 step by step
80241958 × 21052884 = 21052884 × (80241958)
+ 21052884 × 8 that equals 168423072
+ 21052884 × 50 yielding 1052644200
+ 21052884 × 900 what gives us 18947595600
+ 21052884 × 1000 what gives us 21052884000
+ 21052884 × 40000 giving us 842115360000
+ 21052884 × 200000 resulting in 4210576800000
+ 21052884 × 0000000 what gives us 0
+ 21052884 × 80000000 resulting in 1684230720000000

= 1689324633706872
