No problem, we've got 1149 and 1647 to multiply
1149 × 1647 = 1647 × (1149)
+ 1647 × 9 what gives us 14823
+ 1647 × 40 that is equal 65880
+ 1647 × 100 that results in 164700
+ 1647 × 1000 that results in 1647000

= 1892403
