We're going to solve 4507 multiplied by 7872
4507 × 7872 = 7872 × (4507)
+ 7872 × 7 that equals 55104
+ 7872 × 00 yielding 0
+ 7872 × 500 resulting in 3936000
+ 7872 × 4000 yielding 31488000

= 35479104
