Alright, let's work through 8791 times 131 step by step
8791 × 131 = 131 × (8791)
+ 131 × 1 what gives us 131
+ 131 × 90 that is equal 11790
+ 131 × 700 that equals 91700
+ 131 × 8000 that is equal 1048000

= 1151621
