20545 ÷ 7 = 2935 R0
We're going to perform division on 20545 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 (5) of the dividend behind the 6 and repeat the process: 65 / 7

Step 3:
7 goes into 65 9 times with a remainder of 2.
Write down 9 as next digit of of the result. 
Result so far: 29
Subtract 63 from 65 to get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 7

Step 4:
7 goes into 24 3 times with a remainder of 3.
Write down 3 as next digit of of the result. 
Result so far: 293
Subtract 21 from 24 to get 3.
Bring next digit (5) of the dividend behind the 3 and repeat the process: 35 / 7

Step 5:
7 goes into 35 5 times with a remainder of 0.
Write down 5 as next digit of of the result. 
Result so far: 2935
Subtract 35 from 35 to get 0.

The final result is 2935 with a remainder of 0.