No problem, we've got 9949 and 400 to multiply
9949 × 400 = 400 × (9949)
+ 400 × 9 giving us 3600
+ 400 × 40 which equals 16000
+ 400 × 900 that results in 360000
+ 400 × 9000 which equals 3600000

= 3979600
