Alright, let's work through 6001 times 1158 step by step
6001 × 1158 = 1158 × (6001)
+ 1158 × 1 that is equal 1158
+ 1158 × 00 that is equal 0
+ 1158 × 000 what gives us 0
+ 1158 × 6000 that equals 6948000

= 6949158
