Alright, let's work through 1992 times 8491 step by step
1992 × 8491 = 8491 × (1992)
+ 8491 × 2 resulting in 16982
+ 8491 × 90 resulting in 764190
+ 8491 × 900 what gives us 7641900
+ 8491 × 1000 giving us 8491000

= 16914072
