Alright, let's work through 80157450 times 71490302 step by step
80157450 × 71490302 = 71490302 × (80157450)
+ 71490302 × 0 what gives us 0
+ 71490302 × 50 producing 3574515100
+ 71490302 × 400 what gives us 28596120800
+ 71490302 × 7000 that is equal 500432114000
+ 71490302 × 50000 that results in 3574515100000
+ 71490302 × 100000 yielding 7149030200000
+ 71490302 × 0000000 that results in 0
+ 71490302 × 80000000 which equals 5719224160000000

= 5730480308049900
