Alright, let's work through 40732003 times 91251796 step by step
40732003 × 91251796 = 91251796 × (40732003)
+ 91251796 × 3 which equals 273755388
+ 91251796 × 00 which equals 0
+ 91251796 × 000 what gives us 0
+ 91251796 × 2000 what gives us 182503592000
+ 91251796 × 30000 what gives us 2737553880000
+ 91251796 × 700000 what gives us 63876257200000
+ 91251796 × 0000000 what gives us 0
+ 91251796 × 40000000 producing 3650071840000000

= 3716868428427388
