No problem, we've got 1710 and 2158 to multiply
1710 × 2158 = 2158 × (1710)
+ 2158 × 0 resulting in 0
+ 2158 × 10 that results in 21580
+ 2158 × 700 yielding 1510600
+ 2158 × 1000 what gives us 2158000

= 3690180
