90957239 ÷ 143 
Let's see how many times 143 fits into 90957239.

Let's proceed to step 1:
When dividing 9 by 143, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Fetch the next digit (0) from the dividend, attach it to 9 and continue: 90 / 143

Advancing to step 2:
When dividing 90 by 143, we get 0 with a remainder of 90.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 90 and we're left with 90.
Append the next digit (9) from the dividend to 90 and continue with: 909 / 143

Advancing to step 3:
909 divided by 143 is 6 with a remainder of 51.
Use 6 as the next digit of our solution. 
Result so far: 6.0
If we take 858 away from 909, we end up with 51.
Take the next digit (5) from the dividend and append it to 51, then repeat: 515 / 143

Let's proceed to step 4:
If we divide 515 by 143, we get 3 and a remainder of 86.
Put 3 as the next digit of the answer. 
Result so far: 63.0
Subtracting 429 from 515 leaves us with 86.
Take the next digit (7) from the dividend and append it to 86, then repeat: 867 / 143

On to step 5:
The number 143 fits into 867 6 times, leaving a remainder of 9.
Record the quotient 6 as the next digit in the result. 
Result so far: 636.0
The remainder is 9 after subtracting 858 from 867.
Include the next digit (2) from the dividend after 9, then repeat: 92 / 143

Moving on to step 6:
92 divided by 143 is 0 with a remainder of 92.
Use 0 as the next digit of our solution. 
Result so far: 6360.0
Subtracting 0 from 92 leaves us with 92.
Bring next digit (3) of the dividend behind the 92 and repeat the process: 923 / 143

Advancing to step 7:
The number 143 fits into 923 6 times, leaving a remainder of 65.
Write down 6 as next digit of the result. 
Result so far: 63606.0
Deduct 858 from 923 and we're left with 65.
Append the next digit (9) from the dividend to 65 and continue with: 659 / 143

Step 8:
When dividing 659 by 143, we get 4 with a remainder of 87.
Write down 4 as next digit of the result. 
Result so far: 636064.0
The remainder is 87 after subtracting 572 from 659.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Let's proceed to step 9:
143 goes into 870 6 times with a remainder of 12.
The next digit of our result is 6. 
Result so far: 636064.6
If we subtract 858 from 870, we get 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 10:
If we divide 120 by 143, we get 0 and a remainder of 120.
Use 0 as the next digit of our solution. 
Result so far: 636064.6
If we subtract 0 from 120, we 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.

Moving on to step 11:
If we divide 1200 by 143, we get 8 and a remainder of 56.
Record the quotient 8 as the next digit in the result. 
Result so far: 636064.608
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.

On to step 12:
143 can be fit into 560 3 times, resulting in a remainder of 131.
The next digit of our result is 3. 
Result so far: 636064.6083
The remainder is 131 after subtracting 429 from 560.
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 13:
1310 divided by 143 is 9 with a remainder of 23.
Use 9 as the next digit of our solution. 
Result so far: 636064.60839
If we subtract 1287 from 1310, we get 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 14:
143 can be fit into 230 1 times, resulting in a remainder of 87.
The next digit of our result is 1. 
Result so far: 636064.608391
Deduct 143 from 230 and we're left 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.

Let's proceed to step 15:
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: 636064.6083916
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.

Moving on to step 16:
120 divided by 143 is 0 with a remainder of 120.
The next digit of our result is 0. 
Result so far: 636064.6083916
Subtracting 0 from 120 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

The final result is 636064.6083916 with a remainder of 1.2e-07.