86235172 ÷ 143 
We're looking to find how many times 143 goes into 86235172.

Let's proceed to step 1:
8 divided by 143 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 143

Let's proceed to step 2:
The number 143 fits into 86 0 times, leaving a remainder of 86.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 86 leaves us with 86.
Fetch the next digit (2) from the dividend, attach it to 86 and continue: 862 / 143

On to step 3:
The number 143 fits into 862 6 times, leaving a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
Subtract 858 from 862 to get 4.
Fetch the next digit (3) from the dividend, attach it to 4 and continue: 43 / 143

On to step 4:
If we divide 43 by 143, we get 0 and a remainder of 43.
Use 0 as the next digit of our solution. 
Result so far: 60.0
The remainder is 43 after subtracting 0 from 43.
Include the next digit (5) from the dividend after 43, then repeat: 435 / 143

Step 5:
143 can be fit into 435 3 times, resulting in a remainder of 6.
Put 3 as the next digit of the answer. 
Result so far: 603.0
Subtract 429 from 435 to get 6.
Include the next digit (1) from the dividend after 6, then repeat: 61 / 143

On to step 6:
61 divided by 143 is 0 with a remainder of 61.
Put 0 as the next digit of the answer. 
Result so far: 6030.0
Deduct 0 from 61 and we're left with 61.
Include the next digit (7) from the dividend after 61, then repeat: 617 / 143

Moving on to step 7:
143 can be fit into 617 4 times, resulting in a remainder of 45.
The number 4 becomes the next digit in our result. 
Result so far: 60304.0
If we subtract 572 from 617, we get 45.
Fetch the next digit (2) from the dividend, attach it to 45 and continue: 452 / 143

Advancing to step 8:
452 divided by 143 is 3 with a remainder of 23.
The next digit of our result is 3. 
Result so far: 603043.0
Subtracting 429 from 452 leaves us with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Moving on to step 9:
230 divided by 143 is 1 with a remainder of 87.
The next digit of our result is 1. 
Result so far: 603043.1
The remainder is 87 after subtracting 143 from 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Advancing to step 10:
The number 143 fits into 870 6 times, leaving a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 603043.16
If we take 858 away from 870, we end up with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Let's proceed to step 11:
If we divide 120 by 143, we get 0 and a remainder of 120.
Put 0 as the next digit of the answer. 
Result so far: 603043.16
The remainder is 120 after subtracting 0 from 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 12:
If we divide 1200 by 143, we get 8 and a remainder of 56.
Put 8 as the next digit of the answer. 
Result so far: 603043.1608
Deduct 1144 from 1200 and we're left with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

Going ahead to step 13:
143 goes into 560 3 times with a remainder of 131.
The number 3 becomes the next digit in our result. 
Result so far: 603043.16083
If we take 429 away from 560, we end up with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

Advancing to step 14:
143 can be fit into 1310 9 times, resulting in a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 603043.160839
Deduct 1287 from 1310 and we're left with 23.
Since there are no more digits in the dividend, we add a zero to the remainder making it 230, and continue the process.

Going ahead to step 15:
230 divided by 143 is 1 with a remainder of 87.
Record the quotient 1 as the next digit in the result. 
Result so far: 603043.1608391
Subtracting 143 from 230 leaves us with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

On to step 16:
143 can be fit into 870 6 times, resulting in a remainder of 12.
Use 6 as the next digit of our solution. 
Result so far: 603043.16083916
Deduct 858 from 870 and we're left with 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

The final outcome is 603043.16083916, with a leftover of 1.2e-08.