We look at the division of 85878241 by 531 
Let's see how many times 531 fits into 85878241.

Step 1:
If we divide 8 by 531, we get 0 and a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Take the next digit (5) from the dividend and append it to 8, then repeat: 85 / 531

On to step 2:
85 divided by 531 is 0 with a remainder of 85.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 85 and we're left with 85.
Take the next digit (8) from the dividend and append it to 85, then repeat: 858 / 531

On to step 3:
531 goes into 858 1 times with a remainder of 327.
The next digit of our result is 1. 
Result so far: 1.0
If we take 531 away from 858, we end up with 327.
Fetch the next digit (7) from the dividend, attach it to 327 and continue: 3277 / 531

Let's proceed to step 4:
The number 531 fits into 3277 6 times, leaving a remainder of 91.
The next digit of our result is 6. 
Result so far: 16.0
If we subtract 3186 from 3277, we get 91.
Bring next digit (8) of the dividend behind the 91 and repeat the process: 918 / 531

On to step 5:
The number 531 fits into 918 1 times, leaving a remainder of 387.
Record the quotient 1 as the next digit in the result. 
Result so far: 161.0
The remainder is 387 after subtracting 531 from 918.
Fetch the next digit (2) from the dividend, attach it to 387 and continue: 3872 / 531

Advancing to step 6:
3872 divided by 531 is 7 with a remainder of 155.
Use 7 as the next digit of our solution. 
Result so far: 1617.0
Subtract 3717 from 3872 to get 155.
Include the next digit (4) from the dividend after 155, then repeat: 1554 / 531

Step 7:
When dividing 1554 by 531, we get 2 with a remainder of 492.
The next digit of our result is 2. 
Result so far: 16172.0
Subtract 1062 from 1554 to get 492.
Append the next digit (1) from the dividend to 492 and continue with: 4921 / 531

Step 8:
When dividing 4921 by 531, we get 9 with a remainder of 142.
The number 9 becomes the next digit in our result. 
Result so far: 161729.0
Subtract 4779 from 4921 to get 142.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1420, and continue the process.

Let's proceed to step 9:
If we divide 1420 by 531, we get 2 and a remainder of 358.
The next digit of our result is 2. 
Result so far: 161729.2
Deduct 1062 from 1420 and we're left with 358.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3580, and continue the process.

Let's proceed to step 10:
When dividing 3580 by 531, we get 6 with a remainder of 394.
Record the quotient 6 as the next digit in the result. 
Result so far: 161729.26
Subtract 3186 from 3580 to get 394.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3940, and continue the process.

Step 11:
531 goes into 3940 7 times with a remainder of 223.
The number 7 becomes the next digit in our result. 
Result so far: 161729.267
Deduct 3717 from 3940 and we're left with 223.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2230, and continue the process.

Step 12:
If we divide 2230 by 531, we get 4 and a remainder of 106.
The number 4 becomes the next digit in our result. 
Result so far: 161729.2674
The remainder is 106 after subtracting 2124 from 2230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1060, and continue the process.

Going ahead to step 13:
If we divide 1060 by 531, we get 1 and a remainder of 529.
Use 1 as the next digit of our solution. 
Result so far: 161729.26741
Deduct 531 from 1060 and we're left with 529.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5290, and continue the process.

On to step 14:
5290 divided by 531 is 9 with a remainder of 511.
Put 9 as the next digit of the answer. 
Result so far: 161729.267419
If we take 4779 away from 5290, we end up with 511.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5110, and continue the process.

Going ahead to step 15:
The number 531 fits into 5110 9 times, leaving a remainder of 331.
The number 9 becomes the next digit in our result. 
Result so far: 161729.2674199
Deduct 4779 from 5110 and we're left with 331.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3310, and continue the process.

The final result is 161729.2674199 with a remainder of 3.31e-06.