No problem, we've got 1970 and 3161 to multiply
1970 × 3161 = 3161 × (1970)
+ 3161 × 0 that results in 0
+ 3161 × 70 what gives us 221270
+ 3161 × 900 producing 2844900
+ 3161 × 1000 producing 3161000

= 6227170
