Example 8 - 8 smaller cubes are combined to form a larger cube with an edge length of 10 units, which is then painted and subsequently divided into the original smaller cubes. The number of smaller cubes that have at least one face painted is ( ).
(A) 600
(B) 512
(C) 488
(D) 480
Very complicated. We can consider the opposite situation, that is, the $8 \times 8 \times 8$ cube in the very center of the cube with each side measuring 10 units, then the answer is not hard to find: $1000-512=488$ units.