Alright, let's work through 80402425 times 2197480 step by step
80402425 × 2197480 = 2197480 × (80402425)
+ 2197480 × 5 resulting in 10987400
+ 2197480 × 20 yielding 43949600
+ 2197480 × 400 giving us 878992000
+ 2197480 × 2000 that is equal 4394960000
+ 2197480 × 00000 what gives us 0
+ 2197480 × 400000 what gives us 878992000000
+ 2197480 × 0000000 resulting in 0
+ 2197480 × 80000000 giving us 175798400000000

= 176682720889000
