84520 ÷ 7 
Our goal is to divide 84520 by 7.

Let's proceed to step 1:
7 goes into 8 1 times with a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 7 away from 8, we end up with 1.
Fetch the next digit (4) from the dividend, attach it to 1 and continue: 14 / 7

Advancing to step 2:
14 divided by 7 is 2 with a remainder of 0.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Deduct 14 from 14 and we're left with 0.
Include the next digit (5) from the dividend after 0, then repeat: 5 / 7

Going ahead to step 3:
5 divided by 7 is 0 with a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 120.0
Subtracting 0 from 5 leaves us with 5.
Take the next digit (2) from the dividend and append it to 5, then repeat: 52 / 7

Advancing to step 4:
52 divided by 7 is 7 with a remainder of 3.
Use 7 as the next digit of our solution. 
Result so far: 1207.0
Subtract 49 from 52 to get 3.
Append the next digit (0) from the dividend to 3 and continue with: 30 / 7

Let's proceed to step 5:
7 goes into 30 4 times with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 12074.0
The remainder is 2 after subtracting 28 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 6:
7 goes into 20 2 times with a remainder of 6.
Write down 2 as next digit of the result. 
Result so far: 12074.2
Deduct 14 from 20 and we're left with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 7:
When dividing 60 by 7, we get 8 with a remainder of 4.
Use 8 as the next digit of our solution. 
Result so far: 12074.28
If we take 56 away from 60, we end up with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Advancing to step 8:
40 divided by 7 is 5 with a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 12074.285
If we take 35 away from 40, we end up with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Going ahead to step 9:
50 divided by 7 is 7 with a remainder of 1.
Put 7 as the next digit of the answer. 
Result so far: 12074.2857
If we subtract 49 from 50, we get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Let's proceed to step 10:
7 goes into 10 1 times with a remainder of 3.
The next digit of our result is 1. 
Result so far: 12074.28571
Deduct 7 from 10 and we're left with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 11:
When dividing 30 by 7, we get 4 with a remainder of 2.
The number 4 becomes the next digit in our result. 
Result so far: 12074.285714
The remainder is 2 after subtracting 28 from 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 12:
20 divided by 7 is 2 with a remainder of 6.
The next digit of our result is 2. 
Result so far: 12074.2857142
Subtracting 14 from 20 leaves us with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 13:
60 divided by 7 is 8 with a remainder of 4.
The next digit of our result is 8. 
Result so far: 12074.28571428
The remainder is 4 after subtracting 56 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

In conclusion, the division gives 12074.28571428 with a balance of 4e-09.