Let's divide 14173987 by 215
We want to figure out the number of times 14173987 can be divided by 215.

On to step 1:
1 divided by 215 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (4) from the dividend and append it to 1, then repeat: 14 / 215

On to step 2:
If we divide 14 by 215, we get 0 and a remainder of 14.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 14, we end up with 14.
Append the next digit (1) from the dividend to 14 and continue with: 141 / 215

Moving on to step 3:
When dividing 141 by 215, we get 0 with a remainder of 141.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 141 after subtracting 0 from 141.
Grab the next digit (7) from the dividend, add it to 141, then carry on: 1417 / 215

Step 4:
The number 215 fits into 1417 6 times, leaving a remainder of 127.
The next digit of our result is 6. 
Result so far: 6.0
The remainder is 127 after subtracting 1290 from 1417.
Fetch the next digit (3) from the dividend, attach it to 127 and continue: 1273 / 215

Let's proceed to step 5:
215 goes into 1273 5 times with a remainder of 198.
Record the quotient 5 as the next digit in the result. 
Result so far: 65.0
Subtract 1075 from 1273 to get 198.
Fetch the next digit (9) from the dividend, attach it to 198 and continue: 1989 / 215

Step 6:
The number 215 fits into 1989 9 times, leaving a remainder of 54.
Record the quotient 9 as the next digit in the result. 
Result so far: 659.0
If we take 1935 away from 1989, we end up with 54.
Include the next digit (8) from the dividend after 54, then repeat: 548 / 215

On to step 7:
548 divided by 215 is 2 with a remainder of 118.
The number 2 becomes the next digit in our result. 
Result so far: 6592.0
Deduct 430 from 548 and we're left with 118.
Fetch the next digit (7) from the dividend, attach it to 118 and continue: 1187 / 215

Moving on to step 8:
1187 divided by 215 is 5 with a remainder of 112.
Put 5 as the next digit of the answer. 
Result so far: 65925.0
The remainder is 112 after subtracting 1075 from 1187.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1120, and continue the process.

Moving on to step 9:
The number 215 fits into 1120 5 times, leaving a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 65925.5
If we subtract 1075 from 1120, we get 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Moving on to step 10:
450 divided by 215 is 2 with a remainder of 20.
The number 2 becomes the next digit in our result. 
Result so far: 65925.52
The remainder is 20 after subtracting 430 from 450.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 11:
If we divide 200 by 215, we get 0 and a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 65925.52
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Going ahead to step 12:
215 can be fit into 2000 9 times, resulting in a remainder of 65.
Put 9 as the next digit of the answer. 
Result so far: 65925.5209
The remainder is 65 after subtracting 1935 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Let's proceed to step 13:
215 can be fit into 650 3 times, resulting in a remainder of 5.
Use 3 as the next digit of our solution. 
Result so far: 65925.52093
Deduct 645 from 650 and we're left with 5.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Moving on to step 14:
The number 215 fits into 50 0 times, leaving a remainder of 50.
The next digit of our result is 0. 
Result so far: 65925.52093
Subtract 0 from 50 to 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.

Going ahead to step 15:
215 can be fit into 500 2 times, resulting in a remainder of 70.
Record the quotient 2 as the next digit in the result. 
Result so far: 65925.5209302
Deduct 430 from 500 and we're left 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 16:
When dividing 700 by 215, we get 3 with a remainder of 55.
Put 3 as the next digit of the answer. 
Result so far: 65925.52093023
Subtract 645 from 700 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

In conclusion, the division gives 65925.52093023 with a balance of 5.5e-08.