We divide 20509326 by 645
We're looking to find how many times 645 goes into 20509326.

Advancing to step 1:
The number 645 fits into 2 0 times, leaving a remainder of 2.
The number 0 becomes the next digit in our result. 
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 / 645

Advancing to step 2:
When dividing 20 by 645, we get 0 with a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 20, we end up with 20.
Bring next digit (5) of the dividend behind the 20 and repeat the process: 205 / 645

Step 3:
645 goes into 205 0 times with a remainder of 205.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 205, we end up with 205.
Grab the next digit (0) from the dividend, add it to 205, then carry on: 2050 / 645

Advancing to step 4:
2050 divided by 645 is 3 with a remainder of 115.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
The remainder is 115 after subtracting 1935 from 2050.
Bring next digit (9) of the dividend behind the 115 and repeat the process: 1159 / 645

Let's proceed to step 5:
If we divide 1159 by 645, we get 1 and a remainder of 514.
Use 1 as the next digit of our solution. 
Result so far: 31.0
If we subtract 645 from 1159, we get 514.
Grab the next digit (3) from the dividend, add it to 514, then carry on: 5143 / 645

Advancing to step 6:
If we divide 5143 by 645, we get 7 and a remainder of 628.
Use 7 as the next digit of our solution. 
Result so far: 317.0
If we take 4515 away from 5143, we end up with 628.
Grab the next digit (2) from the dividend, add it to 628, then carry on: 6282 / 645

Step 7:
The number 645 fits into 6282 9 times, leaving a remainder of 477.
Record the quotient 9 as the next digit in the result. 
Result so far: 3179.0
If we take 5805 away from 6282, we end up with 477.
Include the next digit (6) from the dividend after 477, then repeat: 4776 / 645

Let's proceed to step 8:
4776 divided by 645 is 7 with a remainder of 261.
The number 7 becomes the next digit in our result. 
Result so far: 31797.0
Subtract 4515 from 4776 to get 261.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2610, and continue the process.

On to step 9:
If we divide 2610 by 645, we get 4 and a remainder of 30.
Put 4 as the next digit of the answer. 
Result so far: 31797.4
If we subtract 2580 from 2610, we get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

On to step 10:
645 goes into 300 0 times with a remainder of 300.
Write down 0 as next digit of the result. 
Result so far: 31797.4
Subtracting 0 from 300 leaves us with 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 11:
645 can be fit into 3000 4 times, resulting in a remainder of 420.
Record the quotient 4 as the next digit in the result. 
Result so far: 31797.404
If we subtract 2580 from 3000, we get 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

On to step 12:
645 can be fit into 4200 6 times, resulting in a remainder of 330.
The number 6 becomes the next digit in our result. 
Result so far: 31797.4046
Deduct 3870 from 4200 and we're left with 330.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3300, and continue the process.

Going ahead to step 13:
If we divide 3300 by 645, we get 5 and a remainder of 75.
Put 5 as the next digit of the answer. 
Result so far: 31797.40465
Deduct 3225 from 3300 and we're left with 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Let's proceed to step 14:
The number 645 fits into 750 1 times, leaving a remainder of 105.
Record the quotient 1 as the next digit in the result. 
Result so far: 31797.404651
Subtracting 645 from 750 leaves us with 105.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1050, and continue the process.

Let's proceed to step 15:
1050 divided by 645 is 1 with a remainder of 405.
Record the quotient 1 as the next digit in the result. 
Result so far: 31797.4046511
If we take 645 away from 1050, we end up with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Our division results in 31797.4046511 with a remaining 4.05e-06.