51485 ÷ 7 = 7355 R0
No problem, we've got 51485 and 7 for the division.

Step 1:
7 goes into 5 0 times with a remainder of 5.
Write down 0 as next digit of of the result. 
Result so far: 0
Subtract 0 from 5 to get 5.
Bring next digit (1) of the dividend behind the 5 and repeat the process: 51 / 7

Step 2:
7 goes into 51 7 times with a remainder of 2.
Write down 7 as next digit of of the result. 
Result so far: 7
Subtract 49 from 51 to get 2.
Bring next digit (4) of the dividend behind the 2 and repeat the process: 24 / 7

Step 3:
7 goes into 24 3 times with a remainder of 3.
Write down 3 as next digit of of the result. 
Result so far: 73
Subtract 21 from 24 to get 3.
Bring next digit (8) of the dividend behind the 3 and repeat the process: 38 / 7

Step 4:
7 goes into 38 5 times with a remainder of 3.
Write down 5 as next digit of of the result. 
Result so far: 735
Subtract 35 from 38 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: 7355
Subtract 35 from 35 to get 0.

The final result is 7355 with a remainder of 0.