What is the answer for 4 times blank times 8 equals 64?

4 × ? × 8 = 64

→ 4 × 8 × ? = 64

→ 32 × ? = 64

→ 32 ÷ 32 × ? = 64 ÷ 32

→ ? = 2

The blank needs to be filled by a 2.