We're dividing 53171162 by 143 
We want to figure out the number of times 53171162 can be divided by 143.

Advancing to step 1:
143 can be fit into 5 0 times, resulting in a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Take the next digit (3) from the dividend and append it to 5, then repeat: 53 / 143

Let's proceed to step 2:
If we divide 53 by 143, we get 0 and a remainder of 53.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Bring next digit (1) of the dividend behind the 53 and repeat the process: 531 / 143

Step 3:
143 can be fit into 531 3 times, resulting in a remainder of 102.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 429 from 531 to get 102.
Grab the next digit (7) from the dividend, add it to 102, then carry on: 1027 / 143

Going ahead to step 4:
143 can be fit into 1027 7 times, resulting in a remainder of 26.
Record the quotient 7 as the next digit in the result. 
Result so far: 37.0
The remainder is 26 after subtracting 1001 from 1027.
Take the next digit (1) from the dividend and append it to 26, then repeat: 261 / 143

On to step 5:
261 divided by 143 is 1 with a remainder of 118.
The number 1 becomes the next digit in our result. 
Result so far: 371.0
The remainder is 118 after subtracting 143 from 261.
Fetch the next digit (1) from the dividend, attach it to 118 and continue: 1181 / 143

Going ahead to step 6:
If we divide 1181 by 143, we get 8 and a remainder of 37.
Use 8 as the next digit of our solution. 
Result so far: 3718.0
If we take 1144 away from 1181, we end up with 37.
Fetch the next digit (6) from the dividend, attach it to 37 and continue: 376 / 143

Moving on to step 7:
376 divided by 143 is 2 with a remainder of 90.
Record the quotient 2 as the next digit in the result. 
Result so far: 37182.0
Subtract 286 from 376 to get 90.
Append the next digit (2) from the dividend to 90 and continue with: 902 / 143

Step 8:
When dividing 902 by 143, we get 6 with a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 371826.0
If we take 858 away from 902, we end up with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Step 9:
If we divide 440 by 143, we get 3 and a remainder of 11.
Use 3 as the next digit of our solution. 
Result so far: 371826.3
Subtracting 429 from 440 leaves us with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

On to step 10:
When dividing 110 by 143, we get 0 with a remainder of 110.
Record the quotient 0 as the next digit in the result. 
Result so far: 371826.3
Subtract 0 from 110 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 11:
The number 143 fits into 1100 7 times, leaving a remainder of 99.
Put 7 as the next digit of the answer. 
Result so far: 371826.307
If we subtract 1001 from 1100, we get 99.
Since there are no more digits in the dividend, we add a zero to the remainder making it 990, and continue the process.

Let's proceed to step 12:
If we divide 990 by 143, we get 6 and a remainder of 132.
The number 6 becomes the next digit in our result. 
Result so far: 371826.3076
If we take 858 away from 990, we end up with 132.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1320, and continue the process.

Going ahead to step 13:
If we divide 1320 by 143, we get 9 and a remainder of 33.
Use 9 as the next digit of our solution. 
Result so far: 371826.30769
Deduct 1287 from 1320 and we're left 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 14:
143 can be fit into 330 2 times, resulting in a remainder of 44.
The next digit of our result is 2. 
Result so far: 371826.307692
Deduct 286 from 330 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

On to step 15:
440 divided by 143 is 3 with a remainder of 11.
The next digit of our result is 3. 
Result so far: 371826.3076923
If we subtract 429 from 440, we get 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Moving on to step 16:
When dividing 110 by 143, we get 0 with a remainder of 110.
Put 0 as the next digit of the answer. 
Result so far: 371826.3076923
Deduct 0 from 110 and we're left with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

The final outcome is 371826.3076923, with a leftover of 1.1e-07.