Alright, let's work through 52400521 times 99500690 step by step
52400521 × 99500690 = 99500690 × (52400521)
+ 99500690 × 1 resulting in 99500690
+ 99500690 × 20 which equals 1990013800
+ 99500690 × 500 that is equal 49750345000
+ 99500690 × 0000 yielding 0
+ 99500690 × 00000 giving us 0
+ 99500690 × 400000 producing 39800276000000
+ 99500690 × 2000000 that equals 199001380000000
+ 99500690 × 50000000 producing 4975034500000000

= 5213887995859490
