13755970 divided by 645 
We want to figure out the number of times 13755970 can be divided by 645.

Advancing to step 1:
1 divided by 645 is 0 with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Append the next digit (3) from the dividend to 1 and continue with: 13 / 645

Going ahead to step 2:
If we divide 13 by 645, we get 0 and a remainder of 13.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 13 to get 13.
Bring next digit (7) of the dividend behind the 13 and repeat the process: 137 / 645

Let's proceed to step 3:
137 divided by 645 is 0 with a remainder of 137.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 137, we end up with 137.
Fetch the next digit (5) from the dividend, attach it to 137 and continue: 1375 / 645

Let's proceed to step 4:
645 can be fit into 1375 2 times, resulting in a remainder of 85.
Write down 2 as next digit of the result. 
Result so far: 2.0
The remainder is 85 after subtracting 1290 from 1375.
Include the next digit (5) from the dividend after 85, then repeat: 855 / 645

Step 5:
If we divide 855 by 645, we get 1 and a remainder of 210.
Use 1 as the next digit of our solution. 
Result so far: 21.0
If we subtract 645 from 855, we get 210.
Fetch the next digit (9) from the dividend, attach it to 210 and continue: 2109 / 645

Moving on to step 6:
When dividing 2109 by 645, we get 3 with a remainder of 174.
The next digit of our result is 3. 
Result so far: 213.0
Subtracting 1935 from 2109 leaves us with 174.
Include the next digit (7) from the dividend after 174, then repeat: 1747 / 645

Let's proceed to step 7:
When dividing 1747 by 645, we get 2 with a remainder of 457.
Put 2 as the next digit of the answer. 
Result so far: 2132.0
If we subtract 1290 from 1747, we get 457.
Bring next digit (0) of the dividend behind the 457 and repeat the process: 4570 / 645

Advancing to step 8:
645 goes into 4570 7 times with a remainder of 55.
Put 7 as the next digit of the answer. 
Result so far: 21327.0
The remainder is 55 after subtracting 4515 from 4570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 9:
645 can be fit into 550 0 times, resulting in a remainder of 550.
Put 0 as the next digit of the answer. 
Result so far: 21327.0
Subtract 0 from 550 to get 550.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5500, and continue the process.

On to step 10:
If we divide 5500 by 645, we get 8 and a remainder of 340.
Write down 8 as next digit of the result. 
Result so far: 21327.08
Deduct 5160 from 5500 and we're left with 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Moving on to step 11:
645 goes into 3400 5 times with a remainder of 175.
Record the quotient 5 as the next digit in the result. 
Result so far: 21327.085
Deduct 3225 from 3400 and we're left with 175.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1750, and continue the process.

Going ahead to step 12:
645 goes into 1750 2 times with a remainder of 460.
The next digit of our result is 2. 
Result so far: 21327.0852
Deduct 1290 from 1750 and we're left 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.

Advancing to step 13:
4600 divided by 645 is 7 with a remainder of 85.
Put 7 as the next digit of the answer. 
Result so far: 21327.08527
Subtracting 4515 from 4600 leaves us with 85.
Since there are no more digits in the dividend, we add a zero to the remainder making it 850, and continue the process.

Let's proceed to step 14:
When dividing 850 by 645, we get 1 with a remainder of 205.
The number 1 becomes the next digit in our result. 
Result so far: 21327.085271
Subtracting 645 from 850 leaves us with 205.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2050, and continue the process.

Step 15:
If we divide 2050 by 645, we get 3 and a remainder of 115.
Use 3 as the next digit of our solution. 
Result so far: 21327.0852713
The remainder is 115 after subtracting 1935 from 2050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1150, and continue the process.

Going ahead to step 16:
645 goes into 1150 1 times with a remainder of 505.
Put 1 as the next digit of the answer. 
Result so far: 21327.08527131
Subtracting 645 from 1150 leaves us with 505.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5050, and continue the process.

Our division results in 21327.08527131 with a remaining 5.05e-07.