53203011 ÷ 171 
Let's see how many times 171 fits into 53203011.

Going ahead to step 1:
When dividing 5 by 171, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 5 leaves us with 5.
Append the next digit (3) from the dividend to 5 and continue with: 53 / 171

Moving on to step 2:
53 divided by 171 is 0 with a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 53, we end up with 53.
Append the next digit (2) from the dividend to 53 and continue with: 532 / 171

Moving on to step 3:
171 goes into 532 3 times with a remainder of 19.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtracting 513 from 532 leaves us with 19.
Fetch the next digit (0) from the dividend, attach it to 19 and continue: 190 / 171

On to step 4:
190 divided by 171 is 1 with a remainder of 19.
Write down 1 as next digit of the result. 
Result so far: 31.0
Deduct 171 from 190 and we're left with 19.
Append the next digit (3) from the dividend to 19 and continue with: 193 / 171

Advancing to step 5:
171 can be fit into 193 1 times, resulting in a remainder of 22.
Record the quotient 1 as the next digit in the result. 
Result so far: 311.0
The remainder is 22 after subtracting 171 from 193.
Append the next digit (0) from the dividend to 22 and continue with: 220 / 171

Step 6:
The number 171 fits into 220 1 times, leaving a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 3111.0
Deduct 171 from 220 and we're left with 49.
Append the next digit (1) from the dividend to 49 and continue with: 491 / 171

On to step 7:
If we divide 491 by 171, we get 2 and a remainder of 149.
Put 2 as the next digit of the answer. 
Result so far: 31112.0
The remainder is 149 after subtracting 342 from 491.
Fetch the next digit (1) from the dividend, attach it to 149 and continue: 1491 / 171

Moving on to step 8:
When dividing 1491 by 171, we get 8 with a remainder of 123.
Put 8 as the next digit of the answer. 
Result so far: 311128.0
Deduct 1368 from 1491 and we're left with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Moving on to step 9:
The number 171 fits into 1230 7 times, leaving a remainder of 33.
The next digit of our result is 7. 
Result so far: 311128.7
Subtracting 1197 from 1230 leaves us with 33.
Since there are no more digits in the dividend, we add a zero to the remainder making it 330, and continue the process.

Step 10:
The number 171 fits into 330 1 times, leaving a remainder of 159.
Put 1 as the next digit of the answer. 
Result so far: 311128.71
Subtracting 171 from 330 leaves us with 159.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

Going ahead to step 11:
When dividing 1590 by 171, we get 9 with a remainder of 51.
The next digit of our result is 9. 
Result so far: 311128.719
Deduct 1539 from 1590 and we're left with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 12:
510 divided by 171 is 2 with a remainder of 168.
Put 2 as the next digit of the answer. 
Result so far: 311128.7192
Subtract 342 from 510 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

Step 13:
171 goes into 1680 9 times with a remainder of 141.
Record the quotient 9 as the next digit in the result. 
Result so far: 311128.71929
If we take 1539 away from 1680, we end up with 141.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

On to step 14:
171 can be fit into 1410 8 times, resulting in a remainder of 42.
Put 8 as the next digit of the answer. 
Result so far: 311128.719298
Subtract 1368 from 1410 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Going ahead to step 15:
171 can be fit into 420 2 times, resulting in a remainder of 78.
The number 2 becomes the next digit in our result. 
Result so far: 311128.7192982
If we subtract 342 from 420, we get 78.
Since there are no more digits in the dividend, we add a zero to the remainder making it 780, and continue the process.

On to step 16:
When dividing 780 by 171, we get 4 with a remainder of 96.
The next digit of our result is 4. 
Result so far: 311128.71929824
Subtracting 684 from 780 leaves us with 96.
Since there are no more digits in the dividend, we add a zero to the remainder making it 960, and continue the process.

The final outcome is 311128.71929824, with a leftover of 9.6e-08.