66726 ÷ 5 = 13345 R1
No problem, we've got 66726 and 5 for the division.

Step 1:
5 goes into 6 1 times with a remainder of 1.
Write down 1 as next digit of of the result. 
Result so far: 1
Subtract 5 from 6 to get 1.
Bring next digit (6) of the dividend behind the 1 and repeat the process: 16 / 5

Step 2:
5 goes into 16 3 times with a remainder of 1.
Write down 3 as next digit of of the result. 
Result so far: 13
Subtract 15 from 16 to get 1.
Bring next digit (7) of the dividend behind the 1 and repeat the process: 17 / 5

Step 3:
5 goes into 17 3 times with a remainder of 2.
Write down 3 as next digit of of the result. 
Result so far: 133
Subtract 15 from 17 to get 2.
Bring next digit (2) of the dividend behind the 2 and repeat the process: 22 / 5

Step 4:
5 goes into 22 4 times with a remainder of 2.
Write down 4 as next digit of of the result. 
Result so far: 1334
Subtract 20 from 22 to get 2.
Bring next digit (6) of the dividend behind the 2 and repeat the process: 26 / 5

Step 5:
5 goes into 26 5 times with a remainder of 1.
Write down 5 as next digit of of the result. 
Result so far: 13345
Subtract 25 from 26 to get 1.

The final result is 13345 with a remainder of 1.