We divide 186394 by 81
We want to figure out the number of times 186394 can be divided by 81.

On to step 1:
If we divide 1 by 81, we get 0 and a remainder of 1.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Fetch the next digit (8) from the dividend, attach it to 1 and continue: 18 / 81

On to step 2:
81 goes into 18 0 times with a remainder of 18.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 18, we end up with 18.
Append the next digit (6) from the dividend to 18 and continue with: 186 / 81

On to step 3:
If we divide 186 by 81, we get 2 and a remainder of 24.
Put 2 as the next digit of the answer. 
Result so far: 2.0
The remainder is 24 after subtracting 162 from 186.
Grab the next digit (3) from the dividend, add it to 24, then carry on: 243 / 81

Advancing to step 4:
243 divided by 81 is 3 with a remainder of 0.
The next digit of our result is 3. 
Result so far: 23.0
Subtract 243 from 243 to get 0.
Fetch the next digit (9) from the dividend, attach it to 0 and continue: 9 / 81

Advancing to step 5:
If we divide 9 by 81, we get 0 and a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 230.0
If we take 0 away from 9, we end up with 9.
Include the next digit (4) from the dividend after 9, then repeat: 94 / 81

Going ahead to step 6:
94 divided by 81 is 1 with a remainder of 13.
The next digit of our result is 1. 
Result so far: 2301.0
If we take 81 away from 94, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Advancing to step 7:
The number 81 fits into 130 1 times, leaving a remainder of 49.
Put 1 as the next digit of the answer. 
Result so far: 2301.1
If we take 81 away from 130, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

On to step 8:
81 can be fit into 490 6 times, resulting in a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 2301.16
Subtract 486 from 490 to get 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Step 9:
When dividing 40 by 81, we get 0 with a remainder of 40.
Record the quotient 0 as the next digit in the result. 
Result so far: 2301.16
Deduct 0 from 40 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

On to step 10:
The number 81 fits into 400 4 times, leaving a remainder of 76.
Record the quotient 4 as the next digit in the result. 
Result so far: 2301.1604
If we take 324 away from 400, we end up with 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

Let's proceed to step 11:
760 divided by 81 is 9 with a remainder of 31.
The next digit of our result is 9. 
Result so far: 2301.16049
If we take 729 away from 760, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 12:
81 can be fit into 310 3 times, resulting in a remainder of 67.
The number 3 becomes the next digit in our result. 
Result so far: 2301.160493
If we subtract 243 from 310, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

On to step 13:
If we divide 670 by 81, we get 8 and a remainder of 22.
Write down 8 as next digit of the result. 
Result so far: 2301.1604938
Subtract 648 from 670 to get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Moving on to step 14:
220 divided by 81 is 2 with a remainder of 58.
The number 2 becomes the next digit in our result. 
Result so far: 2301.16049382
Deduct 162 from 220 and we're left with 58.
Since there are no more digits in the dividend, we add a zero to the remainder making it 580, and continue the process.

The final outcome is 2301.16049382, with a leftover of 5.8e-08.