81990214 ÷ 622 
Our goal is to divide 81990214 by 622.

On to step 1:
The number 622 fits into 8 0 times, leaving a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Fetch the next digit (1) from the dividend, attach it to 8 and continue: 81 / 622

Advancing to step 2:
622 goes into 81 0 times with a remainder of 81.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Take the next digit (9) from the dividend and append it to 81, then repeat: 819 / 622

Moving on to step 3:
622 goes into 819 1 times with a remainder of 197.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 622 from 819 leaves us with 197.
Append the next digit (9) from the dividend to 197 and continue with: 1979 / 622

Let's proceed to step 4:
The number 622 fits into 1979 3 times, leaving a remainder of 113.
Use 3 as the next digit of our solution. 
Result so far: 13.0
Subtract 1866 from 1979 to get 113.
Take the next digit (0) from the dividend and append it to 113, then repeat: 1130 / 622

Let's proceed to step 5:
If we divide 1130 by 622, we get 1 and a remainder of 508.
Put 1 as the next digit of the answer. 
Result so far: 131.0
If we subtract 622 from 1130, we get 508.
Append the next digit (2) from the dividend to 508 and continue with: 5082 / 622

Advancing to step 6:
If we divide 5082 by 622, we get 8 and a remainder of 106.
Write down 8 as next digit of the result. 
Result so far: 1318.0
Subtracting 4976 from 5082 leaves us with 106.
Take the next digit (1) from the dividend and append it to 106, then repeat: 1061 / 622

Let's proceed to step 7:
622 can be fit into 1061 1 times, resulting in a remainder of 439.
Use 1 as the next digit of our solution. 
Result so far: 13181.0
If we subtract 622 from 1061, we get 439.
Include the next digit (4) from the dividend after 439, then repeat: 4394 / 622

Moving on to step 8:
622 goes into 4394 7 times with a remainder of 40.
Write down 7 as next digit of the result. 
Result so far: 131817.0
Subtract 4354 from 4394 to get 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 9:
622 goes into 400 0 times with a remainder of 400.
Record the quotient 0 as the next digit in the result. 
Result so far: 131817.0
Subtracting 0 from 400 leaves us with 400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4000, and continue the process.

Going ahead to step 10:
4000 divided by 622 is 6 with a remainder of 268.
Put 6 as the next digit of the answer. 
Result so far: 131817.06
If we subtract 3732 from 4000, we get 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Going ahead to step 11:
2680 divided by 622 is 4 with a remainder of 192.
Put 4 as the next digit of the answer. 
Result so far: 131817.064
If we subtract 2488 from 2680, we get 192.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1920, and continue the process.

Step 12:
If we divide 1920 by 622, we get 3 and a remainder of 54.
The number 3 becomes the next digit in our result. 
Result so far: 131817.0643
If we subtract 1866 from 1920, we get 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Moving on to step 13:
622 can be fit into 540 0 times, resulting in a remainder of 540.
Use 0 as the next digit of our solution. 
Result so far: 131817.0643
Subtract 0 from 540 to get 540.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5400, and continue the process.

Moving on to step 14:
When dividing 5400 by 622, we get 8 with a remainder of 424.
Write down 8 as next digit of the result. 
Result so far: 131817.064308
If we take 4976 away from 5400, we end up with 424.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4240, and continue the process.

Let's proceed to step 15:
The number 622 fits into 4240 6 times, leaving a remainder of 508.
The next digit of our result is 6. 
Result so far: 131817.0643086
Subtract 3732 from 4240 to get 508.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5080, and continue the process.

On to step 16:
622 can be fit into 5080 8 times, resulting in a remainder of 104.
The number 8 becomes the next digit in our result. 
Result so far: 131817.06430868
Deduct 4976 from 5080 and we're left with 104.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1040, and continue the process.

The final result is 131817.06430868 with a remainder of 1.04e-07.