No problem, we've got 3129 and 5931 to multiply
3129 × 5931 = 5931 × (3129)
+ 5931 × 9 which equals 53379
+ 5931 × 20 that equals 118620
+ 5931 × 100 which equals 593100
+ 5931 × 3000 that results in 17793000

= 18558099
