No problem, we've got 1386 and 1247 to multiply
1386 × 1247 = 1247 × (1386)
+ 1247 × 6 yielding 7482
+ 1247 × 80 producing 99760
+ 1247 × 300 that results in 374100
+ 1247 × 1000 yielding 1247000

= 1728342
