13687178 ÷ 215 
We want to figure out the number of times 13687178 can be divided by 215.

Let's proceed to step 1:
When dividing 1 by 215, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 1 to get 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 215

Let's proceed to step 2:
215 goes into 13 0 times with a remainder of 13.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Take the next digit (6) from the dividend and append it to 13, then repeat: 136 / 215

Advancing to step 3:
215 goes into 136 0 times with a remainder of 136.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 136 leaves us with 136.
Include the next digit (8) from the dividend after 136, then repeat: 1368 / 215

On to step 4:
1368 divided by 215 is 6 with a remainder of 78.
Use 6 as the next digit of our solution. 
Result so far: 6.0
Deduct 1290 from 1368 and we're left with 78.
Fetch the next digit (7) from the dividend, attach it to 78 and continue: 787 / 215

Step 5:
215 can be fit into 787 3 times, resulting in a remainder of 142.
Write down 3 as next digit of the result. 
Result so far: 63.0
If we subtract 645 from 787, we get 142.
Append the next digit (1) from the dividend to 142 and continue with: 1421 / 215

Moving on to step 6:
The number 215 fits into 1421 6 times, leaving a remainder of 131.
Record the quotient 6 as the next digit in the result. 
Result so far: 636.0
If we take 1290 away from 1421, we end up with 131.
Append the next digit (7) from the dividend to 131 and continue with: 1317 / 215

Let's proceed to step 7:
The number 215 fits into 1317 6 times, leaving a remainder of 27.
The number 6 becomes the next digit in our result. 
Result so far: 6366.0
Deduct 1290 from 1317 and we're left with 27.
Include the next digit (8) from the dividend after 27, then repeat: 278 / 215

Let's proceed to step 8:
The number 215 fits into 278 1 times, leaving a remainder of 63.
Record the quotient 1 as the next digit in the result. 
Result so far: 63661.0
Subtracting 215 from 278 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Moving on to step 9:
215 can be fit into 630 2 times, resulting in a remainder of 200.
The number 2 becomes the next digit in our result. 
Result so far: 63661.2
The remainder is 200 after subtracting 430 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 10:
The number 215 fits into 2000 9 times, leaving a remainder of 65.
The next digit of our result is 9. 
Result so far: 63661.29
Subtracting 1935 from 2000 leaves us with 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Advancing to step 11:
If we divide 650 by 215, we get 3 and a remainder of 5.
Write down 3 as next digit of the result. 
Result so far: 63661.293
If we subtract 645 from 650, we get 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Advancing to step 12:
If we divide 50 by 215, we get 0 and a remainder of 50.
Write down 0 as next digit of the result. 
Result so far: 63661.293
If we subtract 0 from 50, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 13:
500 divided by 215 is 2 with a remainder of 70.
Use 2 as the next digit of our solution. 
Result so far: 63661.29302
If we take 430 away from 500, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 14:
700 divided by 215 is 3 with a remainder of 55.
The number 3 becomes the next digit in our result. 
Result so far: 63661.293023
Deduct 645 from 700 and we're left with 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Going ahead to step 15:
215 can be fit into 550 2 times, resulting in a remainder of 120.
The next digit of our result is 2. 
Result so far: 63661.2930232
Deduct 430 from 550 and we're left 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.

Step 16:
If we divide 1200 by 215, we get 5 and a remainder of 125.
Use 5 as the next digit of our solution. 
Result so far: 63661.29302325
If we take 1075 away from 1200, we end up with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

In conclusion, the division gives 63661.29302325 with a balance of 1.25e-07.