Alright, let's work through 840228 times 62808036 step by step
840228 × 62808036 = 62808036 × (840228)
+ 62808036 × 8 that is equal 502464288
+ 62808036 × 20 what gives us 1256160720
+ 62808036 × 200 yielding 12561607200
+ 62808036 × 0000 that results in 0
+ 62808036 × 40000 that results in 2512321440000
+ 62808036 × 800000 which equals 50246428800000

= 52773070472208
