Sure thing! Let's multiply 3991 and 2639 together
3991 × 2639 = 2639 × (3991)
+ 2639 × 1 giving us 2639
+ 2639 × 90 giving us 237510
+ 2639 × 900 producing 2375100
+ 2639 × 3000 giving us 7917000

= 10532249
