Alright, let's work through 2158 times 8201 step by step
2158 × 8201 = 8201 × (2158)
+ 8201 × 8 that equals 65608
+ 8201 × 50 that results in 410050
+ 8201 × 100 what gives us 820100
+ 8201 × 2000 that is equal 16402000

= 17697758
