Alright, let's work through 42308297 times 52758389 step by step
42308297 × 52758389 = 52758389 × (42308297)
+ 52758389 × 7 giving us 369308723
+ 52758389 × 90 that is equal 4748255010
+ 52758389 × 200 resulting in 10551677800
+ 52758389 × 8000 giving us 422067112000
+ 52758389 × 00000 that is equal 0
+ 52758389 × 300000 that results in 15827516700000
+ 52758389 × 2000000 giving us 105516778000000
+ 52758389 × 40000000 that is equal 2110335560000000

= 2232117591053533
