Alright, let's work through 7406 times 5401 step by step
7406 × 5401 = 5401 × (7406)
+ 5401 × 6 giving us 32406
+ 5401 × 00 that is equal 0
+ 5401 × 400 that is equal 2160400
+ 5401 × 7000 that results in 37807000

= 39999806
