Alright, let's work through 5861 times 1639 step by step
5861 × 1639 = 1639 × (5861)
+ 1639 × 1 which equals 1639
+ 1639 × 60 giving us 98340
+ 1639 × 800 yielding 1311200
+ 1639 × 5000 that results in 8195000

= 9606179
