No problem, we've got 1908 and 7990 to multiply
1908 × 7990 = 7990 × (1908)
+ 7990 × 8 which equals 63920
+ 7990 × 00 what gives us 0
+ 7990 × 900 that is equal 7191000
+ 7990 × 1000 giving us 7990000

= 15244920
