No problem, we've got 2445 and 4023 to multiply
2445 × 4023 = 4023 × (2445)
+ 4023 × 5 which equals 20115
+ 4023 × 40 producing 160920
+ 4023 × 400 which equals 1609200
+ 4023 × 2000 giving us 8046000

= 9836235
