No problem, we've got 7142 and 4520 to multiply
7142 × 4520 = 4520 × (7142)
+ 4520 × 2 that is equal 9040
+ 4520 × 40 that is equal 180800
+ 4520 × 100 what gives us 452000
+ 4520 × 7000 producing 31640000

= 32281840
