216507 ÷ 51 
Our goal is to divide 216507 by 51.

Advancing to step 1:
51 goes into 2 0 times with a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (1) from the dividend and append it to 2, then repeat: 21 / 51

Going ahead to step 2:
51 can be fit into 21 0 times, resulting in a remainder of 21.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 21 to get 21.
Bring next digit (6) of the dividend behind the 21 and repeat the process: 216 / 51

Moving on to step 3:
If we divide 216 by 51, we get 4 and a remainder of 12.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
If we take 204 away from 216, we end up with 12.
Include the next digit (5) from the dividend after 12, then repeat: 125 / 51

On to step 4:
125 divided by 51 is 2 with a remainder of 23.
Put 2 as the next digit of the answer. 
Result so far: 42.0
The remainder is 23 after subtracting 102 from 125.
Append the next digit (0) from the dividend to 23 and continue with: 230 / 51

Step 5:
If we divide 230 by 51, we get 4 and a remainder of 26.
The number 4 becomes the next digit in our result. 
Result so far: 424.0
Subtracting 204 from 230 leaves us with 26.
Take the next digit (7) from the dividend and append it to 26, then repeat: 267 / 51

Advancing to step 6:
When dividing 267 by 51, we get 5 with a remainder of 12.
Put 5 as the next digit of the answer. 
Result so far: 4245.0
Deduct 255 from 267 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 7:
If we divide 120 by 51, we get 2 and a remainder of 18.
Write down 2 as next digit of the result. 
Result so far: 4245.2
Subtract 102 from 120 to get 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Let's proceed to step 8:
If we divide 180 by 51, we get 3 and a remainder of 27.
The number 3 becomes the next digit in our result. 
Result so far: 4245.23
Subtracting 153 from 180 leaves us with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Let's proceed to step 9:
When dividing 270 by 51, we get 5 with a remainder of 15.
Use 5 as the next digit of our solution. 
Result so far: 4245.235
If we take 255 away from 270, we end up with 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

Let's proceed to step 10:
When dividing 150 by 51, we get 2 with a remainder of 48.
Use 2 as the next digit of our solution. 
Result so far: 4245.2352
Subtracting 102 from 150 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 11:
51 goes into 480 9 times with a remainder of 21.
The next digit of our result is 9. 
Result so far: 4245.23529
The remainder is 21 after subtracting 459 from 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Advancing to step 12:
51 goes into 210 4 times with a remainder of 6.
Use 4 as the next digit of our solution. 
Result so far: 4245.235294
Deduct 204 from 210 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.

Advancing to step 13:
If we divide 60 by 51, we get 1 and a remainder of 9.
Write down 1 as next digit of the result. 
Result so far: 4245.2352941
Deduct 51 from 60 and we're left with 9.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

Going ahead to step 14:
90 divided by 51 is 1 with a remainder of 39.
Use 1 as the next digit of our solution. 
Result so far: 4245.23529411
Subtract 51 from 90 to get 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

The final outcome is 4245.23529411, with a leftover of 3.9e-08.