Alright, let's work through 7561 times 1598 step by step
7561 × 1598 = 1598 × (7561)
+ 1598 × 1 what gives us 1598
+ 1598 × 60 what gives us 95880
+ 1598 × 500 resulting in 799000
+ 1598 × 7000 that is equal 11186000

= 12082478
