Alright, let's work through 21064002 times 1205534 step by step
21064002 × 1205534 = 1205534 × (21064002)
+ 1205534 × 2 which equals 2411068
+ 1205534 × 00 yielding 0
+ 1205534 × 000 producing 0
+ 1205534 × 4000 that results in 4822136000
+ 1205534 × 60000 that is equal 72332040000
+ 1205534 × 000000 giving us 0
+ 1205534 × 1000000 resulting in 1205534000000
+ 1205534 × 20000000 what gives us 24110680000000

= 25393370587068
