No problem, we've got 2027 and 4157 to multiply
2027 × 4157 = 4157 × (2027)
+ 4157 × 7 which equals 29099
+ 4157 × 20 which equals 83140
+ 4157 × 000 what gives us 0
+ 4157 × 2000 giving us 8314000

= 8426239
