Alright, let's work through 4040 times 7656 step by step
4040 × 7656 = 7656 × (4040)
+ 7656 × 0 that results in 0
+ 7656 × 40 that results in 306240
+ 7656 × 000 that is equal 0
+ 7656 × 4000 yielding 30624000

= 30930240
