We look at the division of 11759799 by 645 
We want to figure out the number of times 11759799 can be divided by 645.

Moving on to step 1:
645 goes into 1 0 times with a remainder of 1.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Grab the next digit (1) from the dividend, add it to 1, then carry on: 11 / 645

Moving on to step 2:
When dividing 11 by 645, we get 0 with a remainder of 11.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 11 and we're left with 11.
Include the next digit (7) from the dividend after 11, then repeat: 117 / 645

On to step 3:
When dividing 117 by 645, we get 0 with a remainder of 117.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 117, we get 117.
Take the next digit (5) from the dividend and append it to 117, then repeat: 1175 / 645

Going ahead to step 4:
If we divide 1175 by 645, we get 1 and a remainder of 530.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we take 645 away from 1175, we end up with 530.
Append the next digit (9) from the dividend to 530 and continue with: 5309 / 645

Let's proceed to step 5:
The number 645 fits into 5309 8 times, leaving a remainder of 149.
Write down 8 as next digit of the result. 
Result so far: 18.0
If we take 5160 away from 5309, we end up with 149.
Fetch the next digit (7) from the dividend, attach it to 149 and continue: 1497 / 645

On to step 6:
645 can be fit into 1497 2 times, resulting in a remainder of 207.
Use 2 as the next digit of our solution. 
Result so far: 182.0
Subtracting 1290 from 1497 leaves us with 207.
Append the next digit (9) from the dividend to 207 and continue with: 2079 / 645

On to step 7:
When dividing 2079 by 645, we get 3 with a remainder of 144.
Write down 3 as next digit of the result. 
Result so far: 1823.0
The remainder is 144 after subtracting 1935 from 2079.
Append the next digit (9) from the dividend to 144 and continue with: 1449 / 645

On to step 8:
The number 645 fits into 1449 2 times, leaving a remainder of 159.
Record the quotient 2 as the next digit in the result. 
Result so far: 18232.0
The remainder is 159 after subtracting 1290 from 1449.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1590, and continue the process.

On to step 9:
When dividing 1590 by 645, we get 2 with a remainder of 300.
Write down 2 as next digit of the result. 
Result so far: 18232.2
If we take 1290 away from 1590, we end up 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.

Moving on to step 10:
3000 divided by 645 is 4 with a remainder of 420.
The number 4 becomes the next digit in our result. 
Result so far: 18232.24
Subtracting 2580 from 3000 leaves us with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Step 11:
645 goes into 4200 6 times with a remainder of 330.
Record the quotient 6 as the next digit in the result. 
Result so far: 18232.246
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 12:
When dividing 3300 by 645, we get 5 with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 18232.2465
If we take 3225 away from 3300, we end up 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 13:
750 divided by 645 is 1 with a remainder of 105.
Put 1 as the next digit of the answer. 
Result so far: 18232.24651
Deduct 645 from 750 and we're left 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.

Moving on to step 14:
645 goes into 1050 1 times with a remainder of 405.
The number 1 becomes the next digit in our result. 
Result so far: 18232.246511
The remainder is 405 after subtracting 645 from 1050.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

The final outcome is 18232.246511, with a leftover of 4.05e-05.