No problem, we've got 7731 and 1520 to multiply
7731 × 1520 = 1520 × (7731)
+ 1520 × 1 which equals 1520
+ 1520 × 30 that results in 45600
+ 1520 × 700 resulting in 1064000
+ 1520 × 7000 what gives us 10640000

= 11751120
