No problem, we've got 4007 and 4839 to multiply
4007 × 4839 = 4839 × (4007)
+ 4839 × 7 resulting in 33873
+ 4839 × 00 producing 0
+ 4839 × 000 which equals 0
+ 4839 × 4000 that results in 19356000

= 19389873
