No problem, we've got 4115 and 6316 to multiply
4115 × 6316 = 6316 × (4115)
+ 6316 × 5 that is equal 31580
+ 6316 × 10 that is equal 63160
+ 6316 × 100 that equals 631600
+ 6316 × 4000 that equals 25264000

= 25990340
