20440 ÷ 7 = 2920 R0
We're going to perform division on 20440 with 7 as the divisor.

Step 1:
7 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 2 to get 2.
Bring next digit (0) of the dividend behind the 2 and repeat the process: 20 / 7

Step 2:
7 goes into 20 2 times with a remainder of 6.
Write down 2 as next digit of of the result. 
Result so far: 2
Subtract 14 from 20 to get 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 7

Step 3:
7 goes into 64 9 times with a remainder of 1.
Write down 9 as next digit of of the result. 
Result so far: 29
Subtract 63 from 64 to get 1.
Bring next digit (4) of the dividend behind the 1 and repeat the process: 14 / 7

Step 4:
7 goes into 14 2 times with a remainder of 0.
Write down 2 as next digit of of the result. 
Result so far: 292
Subtract 14 from 14 to get 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 7

Step 5:
7 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of of the result. 
Result so far: 2920
Subtract 0 from 0 to get 0.

The final result is 2920 with a remainder of 0.