We're dividing 20641321 by 486 
We want to figure out the number of times 20641321 can be divided by 486.

Step 1:
486 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 2 after subtracting 0 from 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 486

Advancing to step 2:
If we divide 20 by 486, we get 0 and a remainder of 20.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Grab the next digit (6) from the dividend, add it to 20, then carry on: 206 / 486

Going ahead to step 3:
When dividing 206 by 486, we get 0 with a remainder of 206.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 206 to get 206.
Bring next digit (4) of the dividend behind the 206 and repeat the process: 2064 / 486

Moving on to step 4:
When dividing 2064 by 486, we get 4 with a remainder of 120.
Record the quotient 4 as the next digit in the result. 
Result so far: 4.0
Subtract 1944 from 2064 to get 120.
Append the next digit (1) from the dividend to 120 and continue with: 1201 / 486

Going ahead to step 5:
1201 divided by 486 is 2 with a remainder of 229.
Write down 2 as next digit of the result. 
Result so far: 42.0
Subtracting 972 from 1201 leaves us with 229.
Take the next digit (3) from the dividend and append it to 229, then repeat: 2293 / 486

Step 6:
The number 486 fits into 2293 4 times, leaving a remainder of 349.
Put 4 as the next digit of the answer. 
Result so far: 424.0
If we subtract 1944 from 2293, we get 349.
Fetch the next digit (2) from the dividend, attach it to 349 and continue: 3492 / 486

On to step 7:
When dividing 3492 by 486, we get 7 with a remainder of 90.
Put 7 as the next digit of the answer. 
Result so far: 4247.0
Subtracting 3402 from 3492 leaves us with 90.
Bring next digit (1) of the dividend behind the 90 and repeat the process: 901 / 486

Step 8:
901 divided by 486 is 1 with a remainder of 415.
The next digit of our result is 1. 
Result so far: 42471.0
Subtracting 486 from 901 leaves us with 415.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

On to step 9:
486 goes into 4150 8 times with a remainder of 262.
Record the quotient 8 as the next digit in the result. 
Result so far: 42471.8
Subtracting 3888 from 4150 leaves us with 262.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2620, and continue the process.

Advancing to step 10:
If we divide 2620 by 486, we get 5 and a remainder of 190.
The next digit of our result is 5. 
Result so far: 42471.85
Deduct 2430 from 2620 and we're left with 190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

Let's proceed to step 11:
486 can be fit into 1900 3 times, resulting in a remainder of 442.
Put 3 as the next digit of the answer. 
Result so far: 42471.853
If we take 1458 away from 1900, we end up with 442.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4420, and continue the process.

On to step 12:
486 goes into 4420 9 times with a remainder of 46.
Write down 9 as next digit of the result. 
Result so far: 42471.8539
The remainder is 46 after subtracting 4374 from 4420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 460, and continue the process.

Moving on to step 13:
If we divide 460 by 486, we get 0 and a remainder of 460.
Put 0 as the next digit of the answer. 
Result so far: 42471.8539
If we take 0 away from 460, we end up with 460.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4600, and continue the process.

On to step 14:
486 can be fit into 4600 9 times, resulting in a remainder of 226.
Record the quotient 9 as the next digit in the result. 
Result so far: 42471.853909
If we take 4374 away from 4600, we end up with 226.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2260, and continue the process.

Let's proceed to step 15:
The number 486 fits into 2260 4 times, leaving a remainder of 316.
The next digit of our result is 4. 
Result so far: 42471.8539094
Deduct 1944 from 2260 and we're left with 316.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3160, and continue the process.

Moving on to step 16:
486 can be fit into 3160 6 times, resulting in a remainder of 244.
Record the quotient 6 as the next digit in the result. 
Result so far: 42471.85390946
Deduct 2916 from 3160 and we're left with 244.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2440, and continue the process.

Our division results in 42471.85390946 with a remaining 2.44e-07.