No problem, we've got 20467697 and 67631220 to multiply
20467697 × 67631220 = 67631220 × (20467697)
+ 67631220 × 7 that equals 473418540
+ 67631220 × 90 which equals 6086809800
+ 67631220 × 600 that equals 40578732000
+ 67631220 × 7000 resulting in 473418540000
+ 67631220 × 60000 what gives us 4057873200000
+ 67631220 × 400000 that is equal 27052488000000
+ 67631220 × 0000000 resulting in 0
+ 67631220 × 20000000 that equals 1352624400000000

= 1384255318700340
