Alright, let's work through 73037099 times 54332731 step by step
73037099 × 54332731 = 54332731 × (73037099)
+ 54332731 × 9 what gives us 488994579
+ 54332731 × 90 that is equal 4889945790
+ 54332731 × 000 what gives us 0
+ 54332731 × 7000 which equals 380329117000
+ 54332731 × 30000 resulting in 1629981930000
+ 54332731 × 000000 that results in 0
+ 54332731 × 3000000 yielding 162998193000000
+ 54332731 × 70000000 resulting in 3803291170000000

= 3968305052987369
