Alright, let's work through 72780256 times 97273048 step by step
72780256 × 97273048 = 97273048 × (72780256)
+ 97273048 × 6 which equals 583638288
+ 97273048 × 50 what gives us 4863652400
+ 97273048 × 200 that equals 19454609600
+ 97273048 × 0000 resulting in 0
+ 97273048 × 80000 that is equal 7781843840000
+ 97273048 × 700000 that is equal 68091133600000
+ 97273048 × 2000000 that is equal 194546096000000
+ 97273048 × 70000000 yielding 6809113360000000

= 7079557335340288
