No problem, we've got 7783 and 1964 to multiply
7783 × 1964 = 1964 × (7783)
+ 1964 × 3 resulting in 5892
+ 1964 × 80 which equals 157120
+ 1964 × 700 giving us 1374800
+ 1964 × 7000 that is equal 13748000

= 15285812
