We're dividing 81131085 by 387 
Our goal is to divide 81131085 by 387.

On to step 1:
The number 387 fits into 8 0 times, leaving 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.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 387

Let's proceed to step 2:
387 goes into 81 0 times with a remainder of 81.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Grab the next digit (1) from the dividend, add it to 81, then carry on: 811 / 387

Advancing to step 3:
811 divided by 387 is 2 with a remainder of 37.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Deduct 774 from 811 and we're left with 37.
Include the next digit (3) from the dividend after 37, then repeat: 373 / 387

Advancing to step 4:
387 goes into 373 0 times with a remainder of 373.
The next digit of our result is 0. 
Result so far: 20.0
If we take 0 away from 373, we end up with 373.
Append the next digit (1) from the dividend to 373 and continue with: 3731 / 387

Step 5:
The number 387 fits into 3731 9 times, leaving a remainder of 248.
The number 9 becomes the next digit in our result. 
Result so far: 209.0
Deduct 3483 from 3731 and we're left with 248.
Grab the next digit (0) from the dividend, add it to 248, then carry on: 2480 / 387

Going ahead to step 6:
When dividing 2480 by 387, we get 6 with a remainder of 158.
The next digit of our result is 6. 
Result so far: 2096.0
If we take 2322 away from 2480, we end up with 158.
Bring next digit (8) of the dividend behind the 158 and repeat the process: 1588 / 387

Advancing to step 7:
387 can be fit into 1588 4 times, resulting in a remainder of 40.
Put 4 as the next digit of the answer. 
Result so far: 20964.0
If we take 1548 away from 1588, we end up with 40.
Append the next digit (5) from the dividend to 40 and continue with: 405 / 387

Advancing to step 8:
405 divided by 387 is 1 with a remainder of 18.
The next digit of our result is 1. 
Result so far: 209641.0
If we take 387 away from 405, we end up with 18.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Step 9:
The number 387 fits into 180 0 times, leaving a remainder of 180.
The next digit of our result is 0. 
Result so far: 209641.0
Subtracting 0 from 180 leaves us with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Step 10:
387 can be fit into 1800 4 times, resulting in a remainder of 252.
The number 4 becomes the next digit in our result. 
Result so far: 209641.04
Deduct 1548 from 1800 and we're left with 252.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2520, and continue the process.

On to step 11:
387 goes into 2520 6 times with a remainder of 198.
Use 6 as the next digit of our solution. 
Result so far: 209641.046
If we take 2322 away from 2520, we end up with 198.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Advancing to step 12:
The number 387 fits into 1980 5 times, leaving a remainder of 45.
The next digit of our result is 5. 
Result so far: 209641.0465
The remainder is 45 after subtracting 1935 from 1980.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 13:
450 divided by 387 is 1 with a remainder of 63.
Write down 1 as next digit of the result. 
Result so far: 209641.04651
Subtracting 387 from 450 leaves us with 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Step 14:
When dividing 630 by 387, we get 1 with a remainder of 243.
Record the quotient 1 as the next digit in the result. 
Result so far: 209641.046511
If we subtract 387 from 630, we get 243.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2430, and continue the process.

The quotient of the division is 209641.046511, and the remainder is 2.43e-05.