Alright, let's work through 90378373 times 59972068 step by step
90378373 × 59972068 = 59972068 × (90378373)
+ 59972068 × 3 that is equal 179916204
+ 59972068 × 70 what gives us 4198044760
+ 59972068 × 300 that equals 17991620400
+ 59972068 × 8000 what gives us 479776544000
+ 59972068 × 70000 giving us 4198044760000
+ 59972068 × 300000 giving us 17991620400000
+ 59972068 × 0000000 resulting in 0
+ 59972068 × 90000000 resulting in 5397486120000000

= 5420177931285364
