No problem, we've got 1621 and 8186 to multiply
1621 × 8186 = 8186 × (1621)
+ 8186 × 1 that equals 8186
+ 8186 × 20 that is equal 163720
+ 8186 × 600 that results in 4911600
+ 8186 × 1000 producing 8186000

= 13269506
