Let's divide 20830157 by 661
We want to figure out the number of times 20830157 can be divided by 661.

Step 1:
661 goes into 2 0 times with a remainder of 2.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Include the next digit (0) from the dividend after 2, then repeat: 20 / 661

Advancing to step 2:
The number 661 fits into 20 0 times, leaving a remainder of 20.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 20 after subtracting 0 from 20.
Bring next digit (8) of the dividend behind the 20 and repeat the process: 208 / 661

Going ahead to step 3:
661 goes into 208 0 times with a remainder of 208.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 208 after subtracting 0 from 208.
Include the next digit (3) from the dividend after 208, then repeat: 2083 / 661

Step 4:
661 goes into 2083 3 times with a remainder of 100.
Use 3 as the next digit of our solution. 
Result so far: 3.0
If we subtract 1983 from 2083, we get 100.
Grab the next digit (0) from the dividend, add it to 100, then carry on: 1000 / 661

Advancing to step 5:
661 goes into 1000 1 times with a remainder of 339.
Record the quotient 1 as the next digit in the result. 
Result so far: 31.0
If we take 661 away from 1000, we end up with 339.
Grab the next digit (1) from the dividend, add it to 339, then carry on: 3391 / 661

Going ahead to step 6:
If we divide 3391 by 661, we get 5 and a remainder of 86.
Record the quotient 5 as the next digit in the result. 
Result so far: 315.0
If we subtract 3305 from 3391, we get 86.
Append the next digit (5) from the dividend to 86 and continue with: 865 / 661

Step 7:
When dividing 865 by 661, we get 1 with a remainder of 204.
The number 1 becomes the next digit in our result. 
Result so far: 3151.0
Subtract 661 from 865 to get 204.
Append the next digit (7) from the dividend to 204 and continue with: 2047 / 661

On to step 8:
When dividing 2047 by 661, we get 3 with a remainder of 64.
Write down 3 as next digit of the result. 
Result so far: 31513.0
If we take 1983 away from 2047, we end up with 64.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Let's proceed to step 9:
640 divided by 661 is 0 with a remainder of 640.
Use 0 as the next digit of our solution. 
Result so far: 31513.0
If we take 0 away from 640, we end up with 640.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6400, and continue the process.

Going ahead to step 10:
6400 divided by 661 is 9 with a remainder of 451.
Record the quotient 9 as the next digit in the result. 
Result so far: 31513.09
If we take 5949 away from 6400, we end up with 451.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4510, and continue the process.

Moving on to step 11:
When dividing 4510 by 661, we get 6 with a remainder of 544.
The number 6 becomes the next digit in our result. 
Result so far: 31513.096
Deduct 3966 from 4510 and we're left with 544.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5440, and continue the process.

Let's proceed to step 12:
5440 divided by 661 is 8 with a remainder of 152.
Use 8 as the next digit of our solution. 
Result so far: 31513.0968
If we take 5288 away from 5440, we end up with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

Advancing to step 13:
1520 divided by 661 is 2 with a remainder of 198.
The next digit of our result is 2. 
Result so far: 31513.09682
The remainder is 198 after subtracting 1322 from 1520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1980, and continue the process.

Going ahead to step 14:
If we divide 1980 by 661, we get 2 and a remainder of 658.
Write down 2 as next digit of the result. 
Result so far: 31513.096822
Subtracting 1322 from 1980 leaves us with 658.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6580, and continue the process.

The final result is 31513.096822 with a remainder of 6.58e-05.