Alright, let's work through 40815542 times 80795703 step by step
40815542 × 80795703 = 80795703 × (40815542)
+ 80795703 × 2 what gives us 161591406
+ 80795703 × 40 yielding 3231828120
+ 80795703 × 500 that is equal 40397851500
+ 80795703 × 5000 what gives us 403978515000
+ 80795703 × 10000 producing 807957030000
+ 80795703 × 800000 yielding 64636562400000
+ 80795703 × 0000000 what gives us 0
+ 80795703 × 40000000 that equals 3231828120000000

= 3297720409216026
