We look at the division of 81254341 by 864 
Let's see how many times 864 fits into 81254341.

Advancing to step 1:
If we divide 8 by 864, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 864

Moving on to step 2:
The number 864 fits into 81 0 times, leaving a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Append the next digit (2) from the dividend to 81 and continue with: 812 / 864

Advancing to step 3:
When dividing 812 by 864, we get 0 with a remainder of 812.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 812, we get 812.
Take the next digit (5) from the dividend and append it to 812, then repeat: 8125 / 864

Moving on to step 4:
If we divide 8125 by 864, we get 9 and a remainder of 349.
Use 9 as the next digit of our solution. 
Result so far: 9.0
Deduct 7776 from 8125 and we're left with 349.
Append the next digit (4) from the dividend to 349 and continue with: 3494 / 864

Step 5:
864 goes into 3494 4 times with a remainder of 38.
Put 4 as the next digit of the answer. 
Result so far: 94.0
The remainder is 38 after subtracting 3456 from 3494.
Take the next digit (3) from the dividend and append it to 38, then repeat: 383 / 864

Moving on to step 6:
383 divided by 864 is 0 with a remainder of 383.
The number 0 becomes the next digit in our result. 
Result so far: 940.0
Subtracting 0 from 383 leaves us with 383.
Bring next digit (4) of the dividend behind the 383 and repeat the process: 3834 / 864

Advancing to step 7:
If we divide 3834 by 864, we get 4 and a remainder of 378.
Record the quotient 4 as the next digit in the result. 
Result so far: 9404.0
Deduct 3456 from 3834 and we're left with 378.
Grab the next digit (1) from the dividend, add it to 378, then carry on: 3781 / 864

Advancing to step 8:
864 goes into 3781 4 times with a remainder of 325.
Record the quotient 4 as the next digit in the result. 
Result so far: 94044.0
Deduct 3456 from 3781 and we're left with 325.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3250, and continue the process.

Moving on to step 9:
864 can be fit into 3250 3 times, resulting in a remainder of 658.
The number 3 becomes the next digit in our result. 
Result so far: 94044.3
The remainder is 658 after subtracting 2592 from 3250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

Step 10:
864 can be fit into 6580 7 times, resulting in a remainder of 532.
Put 7 as the next digit of the answer. 
Result so far: 94044.37
If we take 6048 away from 6580, we end up with 532.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5320, and continue the process.

Advancing to step 11:
864 can be fit into 5320 6 times, resulting in a remainder of 136.
Use 6 as the next digit of our solution. 
Result so far: 94044.376
If we take 5184 away from 5320, we end up with 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

Advancing to step 12:
864 can be fit into 1360 1 times, resulting in a remainder of 496.
The number 1 becomes the next digit in our result. 
Result so far: 94044.3761
Subtract 864 from 1360 to get 496.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4960, and continue the process.

Moving on to step 13:
The number 864 fits into 4960 5 times, leaving a remainder of 640.
Write down 5 as next digit of the result. 
Result so far: 94044.37615
Subtract 4320 from 4960 to get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Moving on to step 14:
864 goes into 6400 7 times with a remainder of 352.
The number 7 becomes the next digit in our result. 
Result so far: 94044.376157
The remainder is 352 after subtracting 6048 from 6400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3520, and continue the process.

Step 15:
When dividing 3520 by 864, we get 4 with a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 94044.3761574
If we subtract 3456 from 3520, we get 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

On to step 16:
When dividing 640 by 864, we get 0 with a remainder of 640.
The next digit of our result is 0. 
Result so far: 94044.3761574
If we subtract 0 from 640, we get 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

The final result is 94044.3761574 with a remainder of 6.4e-07.