81681441 ÷ 19 
Let's see how many times 19 fits into 81681441.

Step 1:
19 can be fit into 8 0 times, resulting in a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 19

On to step 2:
If we divide 81 by 19, we get 4 and a remainder of 5.
Use 4 as the next digit of our solution. 
Result so far: 4.0
The remainder is 5 after subtracting 76 from 81.
Bring next digit (6) of the dividend behind the 5 and repeat the process: 56 / 19

Step 3:
The number 19 fits into 56 2 times, leaving a remainder of 18.
Put 2 as the next digit of the answer. 
Result so far: 42.0
The remainder is 18 after subtracting 38 from 56.
Append the next digit (8) from the dividend to 18 and continue with: 188 / 19

Advancing to step 4:
19 can be fit into 188 9 times, resulting in a remainder of 17.
Write down 9 as next digit of the result. 
Result so far: 429.0
Subtract 171 from 188 to get 17.
Grab the next digit (1) from the dividend, add it to 17, then carry on: 171 / 19

Let's proceed to step 5:
171 divided by 19 is 9 with a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 4299.0
The remainder is 0 after subtracting 171 from 171.
Grab the next digit (4) from the dividend, add it to 0, then carry on: 4 / 19

Advancing to step 6:
The number 19 fits into 4 0 times, leaving a remainder of 4.
Write down 0 as next digit of the result. 
Result so far: 42990.0
If we take 0 away from 4, we end up with 4.
Bring next digit (4) of the dividend behind the 4 and repeat the process: 44 / 19

Going ahead to step 7:
19 can be fit into 44 2 times, resulting in a remainder of 6.
The next digit of our result is 2. 
Result so far: 429902.0
If we take 38 away from 44, we end up with 6.
Grab the next digit (1) from the dividend, add it to 6, then carry on: 61 / 19

Step 8:
61 divided by 19 is 3 with a remainder of 4.
Record the quotient 3 as the next digit in the result. 
Result so far: 4299023.0
Subtracting 57 from 61 leaves us with 4.
Since there are no more digits in the dividend, we add a zero to the remainder making it 40, and continue the process.

Moving on to step 9:
The number 19 fits into 40 2 times, leaving a remainder of 2.
The next digit of our result is 2. 
Result so far: 4299023.2
Subtract 38 from 40 to get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 10:
19 can be fit into 20 1 times, resulting in a remainder of 1.
Use 1 as the next digit of our solution. 
Result so far: 4299023.21
The remainder is 1 after subtracting 19 from 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

On to step 11:
When dividing 10 by 19, we get 0 with a remainder of 10.
The next digit of our result is 0. 
Result so far: 4299023.21
The remainder is 10 after subtracting 0 from 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 12:
If we divide 100 by 19, we get 5 and a remainder of 5.
Record the quotient 5 as the next digit in the result. 
Result so far: 4299023.2105
The remainder is 5 after subtracting 95 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 50, and continue the process.

Let's proceed to step 13:
50 divided by 19 is 2 with a remainder of 12.
Write down 2 as next digit of the result. 
Result so far: 4299023.21052
Subtract 38 from 50 to get 12.
Since there are no more digits in the dividend, we add a zero to the remainder making it 120, and continue the process.

Advancing to step 14:
19 goes into 120 6 times with a remainder of 6.
The number 6 becomes the next digit in our result. 
Result so far: 4299023.210526
If we subtract 114 from 120, we get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Moving on to step 15:
19 can be fit into 60 3 times, resulting in a remainder of 3.
Put 3 as the next digit of the answer. 
Result so far: 4299023.2105263
Deduct 57 from 60 and we're left 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.

Let's proceed to step 16:
The number 19 fits into 30 1 times, leaving a remainder of 11.
The number 1 becomes the next digit in our result. 
Result so far: 4299023.21052631
If we take 19 away from 30, we end up with 11.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

The final outcome is 4299023.21052631, with a leftover of 1.1e-08.