13859259 ÷ 217 
We want to divide 13859259 by 217.

Moving on to step 1:
217 goes into 1 0 times with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 217

Let's proceed to step 2:
13 divided by 217 is 0 with a remainder of 13.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Take the next digit (8) from the dividend and append it to 13, then repeat: 138 / 217

Advancing to step 3:
138 divided by 217 is 0 with a remainder of 138.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 138 after subtracting 0 from 138.
Include the next digit (5) from the dividend after 138, then repeat: 1385 / 217

Let's proceed to step 4:
When dividing 1385 by 217, we get 6 with a remainder of 83.
Put 6 as the next digit of the answer. 
Result so far: 6.0
Subtract 1302 from 1385 to get 83.
Take the next digit (9) from the dividend and append it to 83, then repeat: 839 / 217

Step 5:
The number 217 fits into 839 3 times, leaving a remainder of 188.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
Subtract 651 from 839 to get 188.
Append the next digit (2) from the dividend to 188 and continue with: 1882 / 217

Let's proceed to step 6:
If we divide 1882 by 217, we get 8 and a remainder of 146.
Record the quotient 8 as the next digit in the result. 
Result so far: 638.0
Subtracting 1736 from 1882 leaves us with 146.
Bring next digit (5) of the dividend behind the 146 and repeat the process: 1465 / 217

Moving on to step 7:
The number 217 fits into 1465 6 times, leaving a remainder of 163.
Put 6 as the next digit of the answer. 
Result so far: 6386.0
If we take 1302 away from 1465, we end up with 163.
Fetch the next digit (9) from the dividend, attach it to 163 and continue: 1639 / 217

Going ahead to step 8:
When dividing 1639 by 217, we get 7 with a remainder of 120.
The next digit of our result is 7. 
Result so far: 63867.0
Subtracting 1519 from 1639 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Going ahead to step 9:
217 can be fit into 1200 5 times, resulting in a remainder of 115.
Put 5 as the next digit of the answer. 
Result so far: 63867.5
If we take 1085 away from 1200, we end up with 115.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 10:
When dividing 1150 by 217, we get 5 with a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 63867.55
The remainder is 65 after subtracting 1085 from 1150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

The quotient of the division is 63867.55, and the remainder is 0.065.