To evaluate the expression \( (8 \times 1000) + (6 \times 100) + (2 \times 10) + (4 \times 1) + (3 \times \frac{1}{100}) \), we can calculate each term separately and then add them together.
- \( 8 \times 1000 = 8000 \)
- \( 6 \times 100 = 600 \)
- \( 2 \times 10 = 20 \)
- \( 4 \times 1 = 4 \)
- \( 3 \times \frac{1}{100} = 0.03 \)
Now, we add all of these results together:
\[ 8000 + 600 + 20 + 4 + 0.03 \]
Calculating step-by-step:
- \( 8000 + 600 = 8600 \)
- \( 8600 + 20 = 8620 \)
- \( 8620 + 4 = 8624 \)
- \( 8624 + 0.03 = 8624.03 \)
Thus, the final result as a decimal number is:
\[ \boxed{8624.03} \]