51146 divided by 81 
We're looking to find how many times 81 goes into 51146.

On to step 1:
If we divide 5 by 81, we get 0 and a remainder of 5.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 5, we end up with 5.
Append the next digit (1) from the dividend to 5 and continue with: 51 / 81

Advancing to step 2:
51 divided by 81 is 0 with a remainder of 51.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 51 leaves us with 51.
Include the next digit (1) from the dividend after 51, then repeat: 511 / 81

Let's proceed to step 3:
81 goes into 511 6 times with a remainder of 25.
The number 6 becomes the next digit in our result. 
Result so far: 6.0
If we take 486 away from 511, we end up with 25.
Take the next digit (4) from the dividend and append it to 25, then repeat: 254 / 81

Going ahead to step 4:
The number 81 fits into 254 3 times, leaving a remainder of 11.
Record the quotient 3 as the next digit in the result. 
Result so far: 63.0
The remainder is 11 after subtracting 243 from 254.
Grab the next digit (6) from the dividend, add it to 11, then carry on: 116 / 81

Going ahead to step 5:
The number 81 fits into 116 1 times, leaving a remainder of 35.
Put 1 as the next digit of the answer. 
Result so far: 631.0
The remainder is 35 after subtracting 81 from 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

On to step 6:
If we divide 350 by 81, we get 4 and a remainder of 26.
Use 4 as the next digit of our solution. 
Result so far: 631.4
Deduct 324 from 350 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Moving on to step 7:
The number 81 fits into 260 3 times, leaving a remainder of 17.
The number 3 becomes the next digit in our result. 
Result so far: 631.43
If we take 243 away from 260, we end up with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 8:
81 can be fit into 170 2 times, resulting in a remainder of 8.
Record the quotient 2 as the next digit in the result. 
Result so far: 631.432
The remainder is 8 after subtracting 162 from 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Moving on to step 9:
If we divide 80 by 81, we get 0 and a remainder of 80.
Record the quotient 0 as the next digit in the result. 
Result so far: 631.432
Subtract 0 from 80 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

Advancing to step 10:
81 can be fit into 800 9 times, resulting in a remainder of 71.
The next digit of our result is 9. 
Result so far: 631.43209
The remainder is 71 after subtracting 729 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Step 11:
81 can be fit into 710 8 times, resulting in a remainder of 62.
The number 8 becomes the next digit in our result. 
Result so far: 631.432098
The remainder is 62 after subtracting 648 from 710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 620, and continue the process.

Moving on to step 12:
81 goes into 620 7 times with a remainder of 53.
Put 7 as the next digit of the answer. 
Result so far: 631.4320987
Deduct 567 from 620 and we're left with 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Going ahead to step 13:
When dividing 530 by 81, we get 6 with a remainder of 44.
The number 6 becomes the next digit in our result. 
Result so far: 631.43209876
If we subtract 486 from 530, we get 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

In conclusion, the division gives 631.43209876 with a balance of 4.4e-08.