We're going to solve 3984 multiplied by 1310
3984 × 1310 = 1310 × (3984)
+ 1310 × 4 giving us 5240
+ 1310 × 80 yielding 104800
+ 1310 × 900 that is equal 1179000
+ 1310 × 3000 producing 3930000

= 5219040
