20,484,163 expanded form
2 × 10,000,000 + 0 × 1,000,000 + 4 × 100,000 + 8 × 10,000 + 4 × 1,000 + 1 × 100 + 6 × 10 + 3 × 1
20,000,000+400,000+80,000+4,000+100+ 60+3