No problem, we've got 4428 and 4532 to multiply
4428 × 4532 = 4532 × (4428)
+ 4532 × 8 yielding 36256
+ 4532 × 20 giving us 90640
+ 4532 × 400 yielding 1812800
+ 4532 × 4000 which equals 18128000

= 20067696
