No problem, we've got 6691 and 1156 to multiply
6691 × 1156 = 1156 × (6691)
+ 1156 × 1 which equals 1156
+ 1156 × 90 yielding 104040
+ 1156 × 600 resulting in 693600
+ 1156 × 6000 yielding 6936000

= 7734796
