No problem, we've got 90959987 and 69966612 to multiply
90959987 × 69966612 = 69966612 × (90959987)
+ 69966612 × 7 what gives us 489766284
+ 69966612 × 80 which equals 5597328960
+ 69966612 × 900 resulting in 62969950800
+ 69966612 × 9000 yielding 629699508000
+ 69966612 × 50000 which equals 3498330600000
+ 69966612 × 900000 what gives us 62969950800000
+ 69966612 × 0000000 giving us 0
+ 69966612 × 90000000 which equals 6296995080000000

= 6364162117954044
