No problem, we've got 2381 and 9931 to multiply
2381 × 9931 = 9931 × (2381)
+ 9931 × 1 resulting in 9931
+ 9931 × 80 that equals 794480
+ 9931 × 300 what gives us 2979300
+ 9931 × 2000 that equals 19862000

= 23645711
