Let's divide 641739 by 81
Let's see how many times 81 fits into 641739.

Advancing to step 1:
If we divide 6 by 81, we get 0 and a remainder of 6.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Bring next digit (4) of the dividend behind the 6 and repeat the process: 64 / 81

Moving on to step 2:
81 goes into 64 0 times with a remainder of 64.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Grab the next digit (1) from the dividend, add it to 64, then carry on: 641 / 81

On to step 3:
When dividing 641 by 81, we get 7 with a remainder of 74.
Write down 7 as next digit of the result. 
Result so far: 7.0
If we subtract 567 from 641, we get 74.
Take the next digit (7) from the dividend and append it to 74, then repeat: 747 / 81

Step 4:
81 can be fit into 747 9 times, resulting in a remainder of 18.
Write down 9 as next digit of the result. 
Result so far: 79.0
Subtract 729 from 747 to get 18.
Grab the next digit (3) from the dividend, add it to 18, then carry on: 183 / 81

Let's proceed to step 5:
183 divided by 81 is 2 with a remainder of 21.
Put 2 as the next digit of the answer. 
Result so far: 792.0
Deduct 162 from 183 and we're left with 21.
Bring next digit (9) of the dividend behind the 21 and repeat the process: 219 / 81

Step 6:
219 divided by 81 is 2 with a remainder of 57.
Write down 2 as next digit of the result. 
Result so far: 7922.0
Subtracting 162 from 219 leaves us with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Step 7:
570 divided by 81 is 7 with a remainder of 3.
Put 7 as the next digit of the answer. 
Result so far: 7922.7
If we subtract 567 from 570, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 8:
If we divide 30 by 81, we get 0 and a remainder of 30.
Record the quotient 0 as the next digit in the result. 
Result so far: 7922.7
Deduct 0 from 30 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 9:
The number 81 fits into 300 3 times, leaving a remainder of 57.
The next digit of our result is 3. 
Result so far: 7922.703
The remainder is 57 after subtracting 243 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 10:
The number 81 fits into 570 7 times, leaving a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 7922.7037
If we take 567 away from 570, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Going ahead to step 11:
81 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 7922.7037
Subtracting 0 from 30 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Let's proceed to step 12:
81 goes into 300 3 times with a remainder of 57.
Use 3 as the next digit of our solution. 
Result so far: 7922.703703
Deduct 243 from 300 and we're left with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

On to step 13:
570 divided by 81 is 7 with a remainder of 3.
The number 7 becomes the next digit in our result. 
Result so far: 7922.7037037
If we subtract 567 from 570, we get 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

Step 14:
81 can be fit into 30 0 times, resulting in a remainder of 30.
Use 0 as the next digit of our solution. 
Result so far: 7922.7037037
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

After the division, we end up with 7922.7037037 and a remainder of 3e-08.