66887691 ÷ 143 
We're looking to find how many times 143 goes into 66887691.

Let's proceed to step 1:
6 divided by 143 is 0 with a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 143

On to step 2:
When dividing 66 by 143, we get 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Grab the next digit (8) from the dividend, add it to 66, then carry on: 668 / 143

Moving on to step 3:
The number 143 fits into 668 4 times, leaving a remainder of 96.
The number 4 becomes the next digit in our result. 
Result so far: 4.0
The remainder is 96 after subtracting 572 from 668.
Take the next digit (8) from the dividend and append it to 96, then repeat: 968 / 143

Going ahead to step 4:
968 divided by 143 is 6 with a remainder of 110.
The number 6 becomes the next digit in our result. 
Result so far: 46.0
Subtracting 858 from 968 leaves us with 110.
Append the next digit (7) from the dividend to 110 and continue with: 1107 / 143

Step 5:
143 goes into 1107 7 times with a remainder of 106.
Use 7 as the next digit of our solution. 
Result so far: 467.0
The remainder is 106 after subtracting 1001 from 1107.
Bring next digit (6) of the dividend behind the 106 and repeat the process: 1066 / 143

Step 6:
143 goes into 1066 7 times with a remainder of 65.
Put 7 as the next digit of the answer. 
Result so far: 4677.0
Subtract 1001 from 1066 to get 65.
Take the next digit (9) from the dividend and append it to 65, then repeat: 659 / 143

On to step 7:
659 divided by 143 is 4 with a remainder of 87.
Use 4 as the next digit of our solution. 
Result so far: 46774.0
Subtracting 572 from 659 leaves us with 87.
Grab the next digit (1) from the dividend, add it to 87, then carry on: 871 / 143

Step 8:
The number 143 fits into 871 6 times, leaving a remainder of 13.
The number 6 becomes the next digit in our result. 
Result so far: 467746.0
Subtracting 858 from 871 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Going ahead to step 9:
When dividing 130 by 143, we get 0 with a remainder of 130.
Put 0 as the next digit of the answer. 
Result so far: 467746.0
Subtracting 0 from 130 leaves us with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 10:
1300 divided by 143 is 9 with a remainder of 13.
Put 9 as the next digit of the answer. 
Result so far: 467746.09
Deduct 1287 from 1300 and we're left with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 11:
143 goes into 130 0 times with a remainder of 130.
Write down 0 as next digit of the result. 
Result so far: 467746.09
If we take 0 away from 130, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Advancing to step 12:
If we divide 1300 by 143, we get 9 and a remainder of 13.
The number 9 becomes the next digit in our result. 
Result so far: 467746.0909
The remainder is 13 after subtracting 1287 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 13:
The number 143 fits into 130 0 times, leaving a remainder of 130.
The next digit of our result is 0. 
Result so far: 467746.0909
Deduct 0 from 130 and we're left with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Step 14:
1300 divided by 143 is 9 with a remainder of 13.
The next digit of our result is 9. 
Result so far: 467746.090909
Subtracting 1287 from 1300 leaves us with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 15:
When dividing 130 by 143, we get 0 with a remainder of 130.
The number 0 becomes the next digit in our result. 
Result so far: 467746.090909
Subtract 0 from 130 to get 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Let's proceed to step 16:
If we divide 1300 by 143, we get 9 and a remainder of 13.
The next digit of our result is 9. 
Result so far: 467746.09090909
The remainder is 13 after subtracting 1287 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Our division results in 467746.09090909 with a remaining 1.3e-08.