Alright, let's work through 6164 times 1243 step by step
6164 × 1243 = 1243 × (6164)
+ 1243 × 4 that is equal 4972
+ 1243 × 60 yielding 74580
+ 1243 × 100 yielding 124300
+ 1243 × 6000 that results in 7458000

= 7661852
