Solve the multiplication puzzle

Here is the completed multiplication puzzle:

Step 1: Fill in the direct calculations and simple inversions.

• Top left: $2 \times 3 = \boxed{6}$
• Top right vertical: $4 \times 2 = \boxed{8}$
• Top right horizontal: $4 \times \boxed{2} = \boxed{8}$
• Middle left horizontal: $4 \times \boxed{5} = 20$ (since $20 \div 4 = 5$)
• Bottom right horizontal: $3 \times \boxed{2} = 6$ (since $6