Alright, let's work through 1713 times 7807 step by step
1713 × 7807 = 7807 × (1713)
+ 7807 × 3 which equals 23421
+ 7807 × 10 what gives us 78070
+ 7807 × 700 yielding 5464900
+ 7807 × 1000 that is equal 7807000

= 13373391
