Alright, let's work through 6106 times 9902 step by step
6106 × 9902 = 9902 × (6106)
+ 9902 × 6 resulting in 59412
+ 9902 × 00 what gives us 0
+ 9902 × 100 resulting in 990200
+ 9902 × 6000 what gives us 59412000

= 60461612
