No problem, we've got 1335 and 8340 to multiply
1335 × 8340 = 8340 × (1335)
+ 8340 × 5 that is equal 41700
+ 8340 × 30 resulting in 250200
+ 8340 × 300 which equals 2502000
+ 8340 × 1000 that results in 8340000

= 11133900
