No problem, we've got 1520 and 4248 to multiply
1520 × 4248 = 4248 × (1520)
+ 4248 × 0 which equals 0
+ 4248 × 20 resulting in 84960
+ 4248 × 500 yielding 2124000
+ 4248 × 1000 giving us 4248000

= 6456960
