No problem, we've got 7823 and 1707 to multiply
7823 × 1707 = 1707 × (7823)
+ 1707 × 3 giving us 5121
+ 1707 × 20 resulting in 34140
+ 1707 × 800 that equals 1365600
+ 1707 × 7000 which equals 11949000

= 13353861
