No problem, we've got 2157 and 2579 to multiply
2157 × 2579 = 2579 × (2157)
+ 2579 × 7 that is equal 18053
+ 2579 × 50 giving us 128950
+ 2579 × 100 that equals 257900
+ 2579 × 2000 giving us 5158000

= 5562903
