No problem, we've got 1643 and 7412 to multiply
1643 × 7412 = 7412 × (1643)
+ 7412 × 3 producing 22236
+ 7412 × 40 that is equal 296480
+ 7412 × 600 resulting in 4447200
+ 7412 × 1000 which equals 7412000

= 12177916
