We're going to solve 87021849 multiplied by 82293487
87021849 × 82293487 = 82293487 × (87021849)
+ 82293487 × 9 that results in 740641383
+ 82293487 × 40 which equals 3291739480
+ 82293487 × 800 what gives us 65834789600
+ 82293487 × 1000 what gives us 82293487000
+ 82293487 × 20000 what gives us 1645869740000
+ 82293487 × 000000 giving us 0
+ 82293487 × 7000000 that equals 576054409000000
+ 82293487 × 80000000 which equals 6583478960000000

= 7161331399397463
