Alright, let's work through 72109410 times 28097343 step by step
72109410 × 28097343 = 28097343 × (72109410)
+ 28097343 × 0 what gives us 0
+ 28097343 × 10 what gives us 280973430
+ 28097343 × 400 that results in 11238937200
+ 28097343 × 9000 resulting in 252876087000
+ 28097343 × 00000 that is equal 0
+ 28097343 × 100000 that equals 2809734300000
+ 28097343 × 2000000 which equals 56194686000000
+ 28097343 × 70000000 giving us 1966814010000000

= 2026082826297630
