Let's divide 251644 by 81
Let's see how many times 81 fits into 251644.

Step 1:
The number 81 fits into 2 0 times, leaving a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (5) from the dividend and append it to 2, then repeat: 25 / 81

Advancing to step 2:
81 goes into 25 0 times with a remainder of 25.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 25 after subtracting 0 from 25.
Append the next digit (1) from the dividend to 25 and continue with: 251 / 81

Let's proceed to step 3:
81 goes into 251 3 times with a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 3.0
The remainder is 8 after subtracting 243 from 251.
Grab the next digit (6) from the dividend, add it to 8, then carry on: 86 / 81

Step 4:
81 can be fit into 86 1 times, resulting in a remainder of 5.
The next digit of our result is 1. 
Result so far: 31.0
Deduct 81 from 86 and we're left with 5.
Grab the next digit (4) from the dividend, add it to 5, then carry on: 54 / 81

Let's proceed to step 5:
81 can be fit into 54 0 times, resulting in a remainder of 54.
Record the quotient 0 as the next digit in the result. 
Result so far: 310.0
Deduct 0 from 54 and we're left with 54.
Append the next digit (4) from the dividend to 54 and continue with: 544 / 81

Let's proceed to step 6:
81 can be fit into 544 6 times, resulting in a remainder of 58.
Use 6 as the next digit of our solution. 
Result so far: 3106.0
If we take 486 away from 544, we end up 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.

Advancing to step 7:
If we divide 580 by 81, we get 7 and a remainder of 13.
Use 7 as the next digit of our solution. 
Result so far: 3106.7
Deduct 567 from 580 and we're left 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 8:
When dividing 130 by 81, we get 1 with a remainder of 49.
The next digit of our result is 1. 
Result so far: 3106.71
If we subtract 81 from 130, we get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 9:
81 goes into 490 6 times with a remainder of 4.
The number 6 becomes the next digit in our result. 
Result so far: 3106.716
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 10:
81 goes into 40 0 times with a remainder of 40.
Use 0 as the next digit of our solution. 
Result so far: 3106.716
Subtracting 0 from 40 leaves us 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.

Moving on to step 11:
When dividing 400 by 81, we get 4 with a remainder of 76.
The number 4 becomes the next digit in our result. 
Result so far: 3106.71604
Subtract 324 from 400 to get 76.
Since there are no more digits in the dividend, we add a zero to the remainder making it 760, and continue the process.

On to step 12:
The number 81 fits into 760 9 times, leaving a remainder of 31.
Use 9 as the next digit of our solution. 
Result so far: 3106.716049
Deduct 729 from 760 and we're left 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.

On to step 13:
81 goes into 310 3 times with a remainder of 67.
Record the quotient 3 as the next digit in the result. 
Result so far: 3106.7160493
If we take 243 away from 310, we end up with 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 14:
81 can be fit into 670 8 times, resulting in a remainder of 22.
The number 8 becomes the next digit in our result. 
Result so far: 3106.71604938
Subtracting 648 from 670 leaves us with 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

The quotient of the division is 3106.71604938, and the remainder is 2.2e-08.