No problem, we've got 20479991 and 48702199 to multiply
20479991 × 48702199 = 48702199 × (20479991)
+ 48702199 × 1 giving us 48702199
+ 48702199 × 90 resulting in 4383197910
+ 48702199 × 900 that is equal 43831979100
+ 48702199 × 9000 which equals 438319791000
+ 48702199 × 70000 which equals 3409153930000
+ 48702199 × 400000 that results in 19480879600000
+ 48702199 × 0000000 that equals 0
+ 48702199 × 20000000 what gives us 974043980000000

= 997420597200209
