20787553 divided by 645 
Our goal is to divide 20787553 by 645.

Advancing to step 1:
The number 645 fits into 2 0 times, leaving a remainder of 2.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 2 and we're left with 2.
Take the next digit (0) from the dividend and append it to 2, then repeat: 20 / 645

Going ahead to step 2:
If we divide 20 by 645, we get 0 and 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.
Append the next digit (7) from the dividend to 20 and continue with: 207 / 645

Moving on to step 3:
When dividing 207 by 645, we get 0 with a remainder of 207.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 207, we end up with 207.
Grab the next digit (8) from the dividend, add it to 207, then carry on: 2078 / 645

Advancing to step 4:
645 can be fit into 2078 3 times, resulting in a remainder of 143.
The number 3 becomes the next digit in our result. 
Result so far: 3.0
If we subtract 1935 from 2078, we get 143.
Bring next digit (7) of the dividend behind the 143 and repeat the process: 1437 / 645

Moving on to step 5:
645 goes into 1437 2 times with a remainder of 147.
Write down 2 as next digit of the result. 
Result so far: 32.0
Subtracting 1290 from 1437 leaves us with 147.
Take the next digit (5) from the dividend and append it to 147, then repeat: 1475 / 645

On to step 6:
The number 645 fits into 1475 2 times, leaving a remainder of 185.
Write down 2 as next digit of the result. 
Result so far: 322.0
If we take 1290 away from 1475, we end up with 185.
Fetch the next digit (5) from the dividend, attach it to 185 and continue: 1855 / 645

Advancing to step 7:
645 can be fit into 1855 2 times, resulting in a remainder of 565.
The number 2 becomes the next digit in our result. 
Result so far: 3222.0
If we take 1290 away from 1855, we end up with 565.
Take the next digit (3) from the dividend and append it to 565, then repeat: 5653 / 645

Advancing to step 8:
When dividing 5653 by 645, we get 8 with a remainder of 493.
Write down 8 as next digit of the result. 
Result so far: 32228.0
The remainder is 493 after subtracting 5160 from 5653.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4930, and continue the process.

Going ahead to step 9:
645 goes into 4930 7 times with a remainder of 415.
Use 7 as the next digit of our solution. 
Result so far: 32228.7
Subtracting 4515 from 4930 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 10:
645 goes into 4150 6 times with a remainder of 280.
Record the quotient 6 as the next digit in the result. 
Result so far: 32228.76
If we take 3870 away from 4150, we end up with 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 11:
If we divide 2800 by 645, we get 4 and a remainder of 220.
Record the quotient 4 as the next digit in the result. 
Result so far: 32228.764
If we subtract 2580 from 2800, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 12:
645 can be fit into 2200 3 times, resulting in a remainder of 265.
Record the quotient 3 as the next digit in the result. 
Result so far: 32228.7643
Deduct 1935 from 2200 and we're left with 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

Step 13:
When dividing 2650 by 645, we get 4 with a remainder of 70.
The number 4 becomes the next digit in our result. 
Result so far: 32228.76434
If we take 2580 away from 2650, we end up with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 14:
645 can be fit into 700 1 times, resulting in a remainder of 55.
Use 1 as the next digit of our solution. 
Result so far: 32228.764341
Subtract 645 from 700 to get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Step 15:
The number 645 fits into 550 0 times, leaving a remainder of 550.
Use 0 as the next digit of our solution. 
Result so far: 32228.764341
The remainder is 550 after subtracting 0 from 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

Step 16:
5500 divided by 645 is 8 with a remainder of 340.
Use 8 as the next digit of our solution. 
Result so far: 32228.76434108
Subtract 5160 from 5500 to get 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

After the division, we end up with 32228.76434108 and a remainder of 3.4e-07.