We divide 81220391 by 659
Our goal is to divide 81220391 by 659.

Step 1:
659 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Append the next digit (1) from the dividend to 8 and continue with: 81 / 659

Advancing to step 2:
The number 659 fits into 81 0 times, leaving a remainder of 81.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 81 and we're left with 81.
Fetch the next digit (2) from the dividend, attach it to 81 and continue: 812 / 659

Moving on to step 3:
If we divide 812 by 659, we get 1 and a remainder of 153.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
Subtracting 659 from 812 leaves us with 153.
Append the next digit (2) from the dividend to 153 and continue with: 1532 / 659

Step 4:
659 can be fit into 1532 2 times, resulting in a remainder of 214.
The number 2 becomes the next digit in our result. 
Result so far: 12.0
Subtract 1318 from 1532 to get 214.
Append the next digit (0) from the dividend to 214 and continue with: 2140 / 659

Moving on to step 5:
The number 659 fits into 2140 3 times, leaving a remainder of 163.
Use 3 as the next digit of our solution. 
Result so far: 123.0
Deduct 1977 from 2140 and we're left with 163.
Fetch the next digit (3) from the dividend, attach it to 163 and continue: 1633 / 659

On to step 6:
659 can be fit into 1633 2 times, resulting in a remainder of 315.
The number 2 becomes the next digit in our result. 
Result so far: 1232.0
If we subtract 1318 from 1633, we get 315.
Append the next digit (9) from the dividend to 315 and continue with: 3159 / 659

Let's proceed to step 7:
3159 divided by 659 is 4 with a remainder of 523.
Record the quotient 4 as the next digit in the result. 
Result so far: 12324.0
Deduct 2636 from 3159 and we're left with 523.
Include the next digit (1) from the dividend after 523, then repeat: 5231 / 659

On to step 8:
5231 divided by 659 is 7 with a remainder of 618.
The number 7 becomes the next digit in our result. 
Result so far: 123247.0
Subtracting 4613 from 5231 leaves us with 618.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6180, and continue the process.

Moving on to step 9:
659 goes into 6180 9 times with a remainder of 249.
Put 9 as the next digit of the answer. 
Result so far: 123247.9
If we take 5931 away from 6180, we end up with 249.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2490, and continue the process.

Step 10:
659 goes into 2490 3 times with a remainder of 513.
Use 3 as the next digit of our solution. 
Result so far: 123247.93
Subtracting 1977 from 2490 leaves us with 513.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5130, and continue the process.

Advancing to step 11:
659 goes into 5130 7 times with a remainder of 517.
Write down 7 as next digit of the result. 
Result so far: 123247.937
Subtract 4613 from 5130 to get 517.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5170, and continue the process.

On to step 12:
When dividing 5170 by 659, we get 7 with a remainder of 557.
Record the quotient 7 as the next digit in the result. 
Result so far: 123247.9377
Subtract 4613 from 5170 to get 557.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5570, and continue the process.

In conclusion, the division gives 123247.9377 with a balance of 0.00557.