80860100 divided by 531 
Our goal is to divide 80860100 by 531.

Advancing to step 1:
531 goes into 8 0 times with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (0) of the dividend behind the 8 and repeat the process: 80 / 531

Let's proceed to step 2:
80 divided by 531 is 0 with a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 80, we get 80.
Include the next digit (8) from the dividend after 80, then repeat: 808 / 531

Step 3:
808 divided by 531 is 1 with a remainder of 277.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 531 from 808 and we're left with 277.
Include the next digit (6) from the dividend after 277, then repeat: 2776 / 531

Moving on to step 4:
2776 divided by 531 is 5 with a remainder of 121.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
Subtract 2655 from 2776 to get 121.
Bring next digit (0) of the dividend behind the 121 and repeat the process: 1210 / 531

Moving on to step 5:
The number 531 fits into 1210 2 times, leaving a remainder of 148.
The number 2 becomes the next digit in our result. 
Result so far: 152.0
Subtracting 1062 from 1210 leaves us with 148.
Grab the next digit (1) from the dividend, add it to 148, then carry on: 1481 / 531

Moving on to step 6:
531 goes into 1481 2 times with a remainder of 419.
Write down 2 as next digit of the result. 
Result so far: 1522.0
Subtract 1062 from 1481 to get 419.
Bring next digit (0) of the dividend behind the 419 and repeat the process: 4190 / 531

Let's proceed to step 7:
The number 531 fits into 4190 7 times, leaving a remainder of 473.
Write down 7 as next digit of the result. 
Result so far: 15227.0
Deduct 3717 from 4190 and we're left with 473.
Include the next digit (0) from the dividend after 473, then repeat: 4730 / 531

On to step 8:
531 can be fit into 4730 8 times, resulting in a remainder of 482.
The number 8 becomes the next digit in our result. 
Result so far: 152278.0
Deduct 4248 from 4730 and we're left with 482.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4820, and continue the process.

Going ahead to step 9:
4820 divided by 531 is 9 with a remainder of 41.
The next digit of our result is 9. 
Result so far: 152278.9
If we subtract 4779 from 4820, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 10:
531 can be fit into 410 0 times, resulting in a remainder of 410.
The next digit of our result is 0. 
Result so far: 152278.9
If we take 0 away from 410, we end up with 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4100, and continue the process.

On to step 11:
4100 divided by 531 is 7 with a remainder of 383.
Write down 7 as next digit of the result. 
Result so far: 152278.907
The remainder is 383 after subtracting 3717 from 4100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3830, and continue the process.

Advancing to step 12:
If we divide 3830 by 531, we get 7 and a remainder of 113.
The next digit of our result is 7. 
Result so far: 152278.9077
If we subtract 3717 from 3830, we get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

The final result is 152278.9077 with a remainder of 0.00113.