Alright, let's work through 53299745 times 8909251 step by step
53299745 × 8909251 = 8909251 × (53299745)
+ 8909251 × 5 giving us 44546255
+ 8909251 × 40 producing 356370040
+ 8909251 × 700 giving us 6236475700
+ 8909251 × 9000 resulting in 80183259000
+ 8909251 × 90000 producing 801832590000
+ 8909251 × 200000 yielding 1781850200000
+ 8909251 × 3000000 that results in 26727753000000
+ 8909251 × 50000000 which equals 445462550000000

= 474860806440995
