Alright, let's work through 6742 times 3108 step by step
6742 × 3108 = 3108 × (6742)
+ 3108 × 2 giving us 6216
+ 3108 × 40 that results in 124320
+ 3108 × 700 resulting in 2175600
+ 3108 × 6000 resulting in 18648000

= 20954136
