Alright, let's work through 6641 times 5940 step by step
6641 × 5940 = 5940 × (6641)
+ 5940 × 1 that results in 5940
+ 5940 × 40 that equals 237600
+ 5940 × 600 that is equal 3564000
+ 5940 × 6000 that is equal 35640000

= 39447540
