Alright, let's work through 1583 times 6481 step by step
1583 × 6481 = 6481 × (1583)
+ 6481 × 3 that results in 19443
+ 6481 × 80 that is equal 518480
+ 6481 × 500 that equals 3240500
+ 6481 × 1000 that is equal 6481000

= 10259423
