Alright, let's work through 662489 times 55405481 step by step
662489 × 55405481 = 55405481 × (662489)
+ 55405481 × 9 which equals 498649329
+ 55405481 × 80 that is equal 4432438480
+ 55405481 × 400 resulting in 22162192400
+ 55405481 × 2000 yielding 110810962000
+ 55405481 × 60000 that is equal 3324328860000
+ 55405481 × 600000 which equals 33243288600000

= 36705521702209
