Alright, let's work through 1682 times 8263 step by step
1682 × 8263 = 8263 × (1682)
+ 8263 × 2 yielding 16526
+ 8263 × 80 which equals 661040
+ 8263 × 600 that is equal 4957800
+ 8263 × 1000 resulting in 8263000

= 13898366
