Alright, let's work through 54924623 times 64961619 step by step
54924623 × 64961619 = 64961619 × (54924623)
+ 64961619 × 3 producing 194884857
+ 64961619 × 20 that equals 1299232380
+ 64961619 × 600 that is equal 38976971400
+ 64961619 × 4000 that equals 259846476000
+ 64961619 × 20000 resulting in 1299232380000
+ 64961619 × 900000 which equals 58465457100000
+ 64961619 × 4000000 what gives us 259846476000000
+ 64961619 × 50000000 giving us 3248080950000000

= 3567992433044637
