Alright, let's work through 40028872 times 90152265 step by step
40028872 × 90152265 = 90152265 × (40028872)
+ 90152265 × 2 that equals 180304530
+ 90152265 × 70 that equals 6310658550
+ 90152265 × 800 that results in 72121812000
+ 90152265 × 8000 what gives us 721218120000
+ 90152265 × 20000 producing 1803045300000
+ 90152265 × 000000 that is equal 0
+ 90152265 × 0000000 giving us 0
+ 90152265 × 40000000 resulting in 3606090600000000

= 3608693476195080
