Alright, let's work through 85199098 times 18515748 step by step
85199098 × 18515748 = 18515748 × (85199098)
+ 18515748 × 8 what gives us 148125984
+ 18515748 × 90 giving us 1666417320
+ 18515748 × 000 what gives us 0
+ 18515748 × 9000 what gives us 166641732000
+ 18515748 × 90000 that is equal 1666417320000
+ 18515748 × 100000 that is equal 1851574800000
+ 18515748 × 5000000 which equals 92578740000000
+ 18515748 × 80000000 that equals 1481259840000000

= 1577525028395304
