We're going to solve 8409 multiplied by 7880
8409 × 7880 = 7880 × (8409)
+ 7880 × 9 giving us 70920
+ 7880 × 00 that equals 0
+ 7880 × 400 what gives us 3152000
+ 7880 × 8000 resulting in 63040000

= 66262920
