No problem, we've got 7923 and 3998 to multiply
7923 × 3998 = 3998 × (7923)
+ 3998 × 3 producing 11994
+ 3998 × 20 giving us 79960
+ 3998 × 900 giving us 3598200
+ 3998 × 7000 what gives us 27986000

= 31676154
