15431 ÷ 4 
Let's see how many times 4 fits into 15431.

Advancing to step 1:
4 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 4

Going ahead to step 2:
The number 4 fits into 15 3 times, leaving a remainder of 3.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 12 from 15 and we're left with 3.
Take the next digit (4) from the dividend and append it to 3, then repeat: 34 / 4

Going ahead to step 3:
4 can be fit into 34 8 times, resulting in a remainder of 2.
The number 8 becomes the next digit in our result. 
Result so far: 38.0
If we take 32 away from 34, we end up with 2.
Append the next digit (3) from the dividend to 2 and continue with: 23 / 4

On to step 4:
When dividing 23 by 4, we get 5 with a remainder of 3.
The next digit of our result is 5. 
Result so far: 385.0
The remainder is 3 after subtracting 20 from 23.
Bring next digit (1) of the dividend behind the 3 and repeat the process: 31 / 4

Let's proceed to step 5:
4 can be fit into 31 7 times, resulting in a remainder of 3.
Record the quotient 7 as the next digit in the result. 
Result so far: 3857.0
Subtract 28 from 31 to get 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 6:
If we divide 30 by 4, we get 7 and a remainder of 2.
Record the quotient 7 as the next digit in the result. 
Result so far: 3857.7
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.

On to step 7:
The number 4 fits into 20 5 times, leaving a remainder of 0.
The next digit of our result is 5. 
Result so far: 3857.75
The remainder is 0 after subtracting 20 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 8:
If we divide 0 by 4, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 3857.75
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.

Advancing to step 9:
When dividing 0 by 4, we get 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 3857.75
Subtracting 0 from 0 leaves us 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.

The quotient of the division is 3857.75, and the remainder is 0.0.