No problem, we've got 1980 and 2250 to multiply
1980 × 2250 = 2250 × (1980)
+ 2250 × 0 that equals 0
+ 2250 × 80 yielding 180000
+ 2250 × 900 yielding 2025000
+ 2250 × 1000 that is equal 2250000

= 4455000
