Alright, let's work through 1306 times 1531 step by step
1306 × 1531 = 1531 × (1306)
+ 1531 × 6 what gives us 9186
+ 1531 × 00 what gives us 0
+ 1531 × 300 giving us 459300
+ 1531 × 1000 producing 1531000

= 1999486
