Alright, let's work through 7537 times 8159 step by step
7537 × 8159 = 8159 × (7537)
+ 8159 × 7 that equals 57113
+ 8159 × 30 what gives us 244770
+ 8159 × 500 that is equal 4079500
+ 8159 × 7000 that is equal 57113000

= 61494383
