Alright, let's work through 8645 times 3161 step by step
8645 × 3161 = 3161 × (8645)
+ 3161 × 5 that results in 15805
+ 3161 × 40 which equals 126440
+ 3161 × 600 what gives us 1896600
+ 3161 × 8000 what gives us 25288000

= 27326845
