Let's divide 521307 by 4
We want to divide 521307 by 4.

Moving on to step 1:
The number 4 fits into 5 1 times, leaving a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 4 from 5, we get 1.
Include the next digit (2) from the dividend after 1, then repeat: 12 / 4

On to step 2:
When dividing 12 by 4, we get 3 with a remainder of 0.
The number 3 becomes the next digit in our result. 
Result so far: 13.0
Subtract 12 from 12 to get 0.
Include the next digit (1) from the dividend after 0, then repeat: 1 / 4

On to step 3:
If we divide 1 by 4, we get 0 and a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 130.0
Subtract 0 from 1 to get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 4

On to step 4:
If we divide 13 by 4, we get 3 and a remainder of 1.
Write down 3 as next digit of the result. 
Result so far: 1303.0
Subtract 12 from 13 to get 1.
Grab the next digit (0) from the dividend, add it to 1, then carry on: 10 / 4

Let's proceed to step 5:
10 divided by 4 is 2 with a remainder of 2.
Record the quotient 2 as the next digit in the result. 
Result so far: 13032.0
Subtracting 8 from 10 leaves us with 2.
Append the next digit (7) from the dividend to 2 and continue with: 27 / 4

Step 6:
4 can be fit into 27 6 times, resulting in a remainder of 3.
The number 6 becomes the next digit in our result. 
Result so far: 130326.0
Subtracting 24 from 27 leaves us 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.

Let's proceed to step 7:
30 divided by 4 is 7 with a remainder of 2.
The next digit of our result is 7. 
Result so far: 130326.7
Subtract 28 from 30 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Step 8:
The number 4 fits into 20 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 130326.75
If we take 20 away from 20, we end up with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 9:
The number 4 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 130326.75
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Step 10:
When dividing 0 by 4, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 130326.75
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The quotient of the division is 130326.75, and the remainder is 0.0.