Alright, let's work through 53412043 times 83128819 step by step
53412043 × 83128819 = 83128819 × (53412043)
+ 83128819 × 3 giving us 249386457
+ 83128819 × 40 what gives us 3325152760
+ 83128819 × 000 that is equal 0
+ 83128819 × 2000 producing 166257638000
+ 83128819 × 10000 which equals 831288190000
+ 83128819 × 400000 what gives us 33251527600000
+ 83128819 × 3000000 resulting in 249386457000000
+ 83128819 × 50000000 giving us 4156440950000000

= 4440080054967217
