Alright, let's work through 80243133 times 45491876 step by step
80243133 × 45491876 = 45491876 × (80243133)
+ 45491876 × 3 producing 136475628
+ 45491876 × 30 that results in 1364756280
+ 45491876 × 100 that is equal 4549187600
+ 45491876 × 3000 resulting in 136475628000
+ 45491876 × 40000 yielding 1819675040000
+ 45491876 × 200000 which equals 9098375200000
+ 45491876 × 0000000 producing 0
+ 45491876 × 80000000 that results in 3639350080000000

= 3650410656287508
