Alright, let's work through 40071885 times 75827485 step by step
40071885 × 75827485 = 75827485 × (40071885)
+ 75827485 × 5 giving us 379137425
+ 75827485 × 80 what gives us 6066198800
+ 75827485 × 800 that equals 60661988000
+ 75827485 × 1000 resulting in 75827485000
+ 75827485 × 70000 that results in 5307923950000
+ 75827485 × 000000 that equals 0
+ 75827485 × 0000000 producing 0
+ 75827485 × 40000000 that equals 3033099400000000

= 3038550258759225
