We're dividing 53170410 by 215 
Our goal is to divide 53170410 by 215.

Going ahead to step 1:
5 divided by 215 is 0 with a remainder of 5.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 215

Advancing to step 2:
When dividing 53 by 215, we get 0 with a remainder of 53.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Include the next digit (1) from the dividend after 53, then repeat: 531 / 215

Advancing to step 3:
215 can be fit into 531 2 times, resulting in a remainder of 101.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 430 from 531 and we're left with 101.
Append the next digit (7) from the dividend to 101 and continue with: 1017 / 215

Let's proceed to step 4:
1017 divided by 215 is 4 with a remainder of 157.
Use 4 as the next digit of our solution. 
Result so far: 24.0
If we take 860 away from 1017, we end up with 157.
Bring next digit (0) of the dividend behind the 157 and repeat the process: 1570 / 215

Moving on to step 5:
215 can be fit into 1570 7 times, resulting in a remainder of 65.
Use 7 as the next digit of our solution. 
Result so far: 247.0
The remainder is 65 after subtracting 1505 from 1570.
Include the next digit (4) from the dividend after 65, then repeat: 654 / 215

Step 6:
If we divide 654 by 215, we get 3 and a remainder of 9.
Write down 3 as next digit of the result. 
Result so far: 2473.0
Subtract 645 from 654 to get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 215

Going ahead to step 7:
91 divided by 215 is 0 with a remainder of 91.
The number 0 becomes the next digit in our result. 
Result so far: 24730.0
The remainder is 91 after subtracting 0 from 91.
Append the next digit (0) from the dividend to 91 and continue with: 910 / 215

Advancing to step 8:
When dividing 910 by 215, we get 4 with a remainder of 50.
Use 4 as the next digit of our solution. 
Result so far: 247304.0
Subtract 860 from 910 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.

Moving on to step 9:
215 goes into 500 2 times with a remainder of 70.
The next digit of our result is 2. 
Result so far: 247304.2
Subtracting 430 from 500 leaves us 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.

On to step 10:
When dividing 700 by 215, we get 3 with a remainder of 55.
Use 3 as the next digit of our solution. 
Result so far: 247304.23
If we subtract 645 from 700, we 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.

Step 11:
If we divide 550 by 215, we get 2 and a remainder of 120.
Write down 2 as next digit of the result. 
Result so far: 247304.232
Subtract 430 from 550 to get 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 12:
If we divide 1200 by 215, we get 5 and a remainder of 125.
Put 5 as the next digit of the answer. 
Result so far: 247304.2325
Deduct 1075 from 1200 and we're left 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.

Let's proceed to step 13:
When dividing 1250 by 215, we get 5 with a remainder of 175.
Put 5 as the next digit of the answer. 
Result so far: 247304.23255
If we take 1075 away from 1250, we end up with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Our division results in 247304.23255 with a remaining 0.000175.