Alright, let's work through 41398881 times 42497321 step by step
41398881 × 42497321 = 42497321 × (41398881)
+ 42497321 × 1 resulting in 42497321
+ 42497321 × 80 that equals 3399785680
+ 42497321 × 800 that results in 33997856800
+ 42497321 × 8000 which equals 339978568000
+ 42497321 × 90000 giving us 3824758890000
+ 42497321 × 300000 that results in 12749196300000
+ 42497321 × 1000000 that results in 42497321000000
+ 42497321 × 40000000 that is equal 1699892840000000

= 1759341534897801
