No problem, we've got 20696790 and 80505670 to multiply
20696790 × 80505670 = 80505670 × (20696790)
+ 80505670 × 0 that results in 0
+ 80505670 × 90 resulting in 7245510300
+ 80505670 × 700 giving us 56353969000
+ 80505670 × 6000 producing 483034020000
+ 80505670 × 90000 producing 7245510300000
+ 80505670 × 600000 what gives us 48303402000000
+ 80505670 × 0000000 giving us 0
+ 80505670 × 20000000 that equals 1610113400000000

= 1666208945799300
