Alright, let's work through 1381 times 5981 step by step
1381 × 5981 = 5981 × (1381)
+ 5981 × 1 that equals 5981
+ 5981 × 80 yielding 478480
+ 5981 × 300 which equals 1794300
+ 5981 × 1000 what gives us 5981000

= 8259761
