Let's divide 81173916 by 431
We want to divide 81173916 by 431.

Moving on to step 1:
431 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Grab the next digit (1) from the dividend, add it to 8, then carry on: 81 / 431

Going ahead to step 2:
81 divided by 431 is 0 with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
The remainder is 81 after subtracting 0 from 81.
Fetch the next digit (1) from the dividend, attach it to 81 and continue: 811 / 431

Advancing to step 3:
If we divide 811 by 431, we get 1 and a remainder of 380.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 431 from 811, we get 380.
Bring next digit (7) of the dividend behind the 380 and repeat the process: 3807 / 431

Advancing to step 4:
431 can be fit into 3807 8 times, resulting in a remainder of 359.
Record the quotient 8 as the next digit in the result. 
Result so far: 18.0
The remainder is 359 after subtracting 3448 from 3807.
Fetch the next digit (3) from the dividend, attach it to 359 and continue: 3593 / 431

Let's proceed to step 5:
The number 431 fits into 3593 8 times, leaving a remainder of 145.
Put 8 as the next digit of the answer. 
Result so far: 188.0
If we subtract 3448 from 3593, we get 145.
Grab the next digit (9) from the dividend, add it to 145, then carry on: 1459 / 431

Advancing to step 6:
1459 divided by 431 is 3 with a remainder of 166.
The next digit of our result is 3. 
Result so far: 1883.0
If we take 1293 away from 1459, we end up with 166.
Grab the next digit (1) from the dividend, add it to 166, then carry on: 1661 / 431

Moving on to step 7:
431 can be fit into 1661 3 times, resulting in a remainder of 368.
Record the quotient 3 as the next digit in the result. 
Result so far: 18833.0
Deduct 1293 from 1661 and we're left with 368.
Include the next digit (6) from the dividend after 368, then repeat: 3686 / 431

Step 8:
431 goes into 3686 8 times with a remainder of 238.
Put 8 as the next digit of the answer. 
Result so far: 188338.0
Deduct 3448 from 3686 and we're left with 238.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2380, and continue the process.

Step 9:
2380 divided by 431 is 5 with a remainder of 225.
Put 5 as the next digit of the answer. 
Result so far: 188338.5
If we subtract 2155 from 2380, we get 225.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2250, and continue the process.

On to step 10:
The number 431 fits into 2250 5 times, leaving a remainder of 95.
Use 5 as the next digit of our solution. 
Result so far: 188338.55
If we take 2155 away from 2250, we end up with 95.
Since there are no more digits in the dividend, we add a zero to the remainder making it 950, and continue the process.

After the division, we end up with 188338.55 and a remainder of 0.095.