Alright, let's work through 21042797 times 36067188 step by step
21042797 × 36067188 = 36067188 × (21042797)
+ 36067188 × 7 that results in 252470316
+ 36067188 × 90 that results in 3246046920
+ 36067188 × 700 giving us 25247031600
+ 36067188 × 2000 yielding 72134376000
+ 36067188 × 40000 resulting in 1442687520000
+ 36067188 × 000000 that equals 0
+ 36067188 × 1000000 that is equal 36067188000000
+ 36067188 × 20000000 yielding 721343760000000

= 758954515444836
