No problem, we've got 1821 and 6125 to multiply
1821 × 6125 = 6125 × (1821)
+ 6125 × 1 which equals 6125
+ 6125 × 20 giving us 122500
+ 6125 × 800 giving us 4900000
+ 6125 × 1000 that is equal 6125000

= 11153625
