We're dividing 22252594 by 645 
We want to divide 22252594 by 645.

Step 1:
645 goes into 2 0 times with a remainder of 2.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtract 0 from 2 to get 2.
Include the next digit (2) from the dividend after 2, then repeat: 22 / 645

Going ahead to step 2:
645 can be fit into 22 0 times, resulting in a remainder of 22.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 22 to get 22.
Append the next digit (2) from the dividend to 22 and continue with: 222 / 645

Let's proceed to step 3:
If we divide 222 by 645, we get 0 and a remainder of 222.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 222, we end up with 222.
Fetch the next digit (5) from the dividend, attach it to 222 and continue: 2225 / 645

Step 4:
645 goes into 2225 3 times with a remainder of 290.
Write down 3 as next digit of the result. 
Result so far: 3.0
Deduct 1935 from 2225 and we're left with 290.
Bring next digit (2) of the dividend behind the 290 and repeat the process: 2902 / 645

Moving on to step 5:
645 can be fit into 2902 4 times, resulting in a remainder of 322.
The next digit of our result is 4. 
Result so far: 34.0
Subtracting 2580 from 2902 leaves us with 322.
Append the next digit (5) from the dividend to 322 and continue with: 3225 / 645

On to step 6:
3225 divided by 645 is 5 with a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 345.0
The remainder is 0 after subtracting 3225 from 3225.
Take the next digit (9) from the dividend and append it to 0, then repeat: 9 / 645

Going ahead to step 7:
When dividing 9 by 645, we get 0 with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 3450.0
The remainder is 9 after subtracting 0 from 9.
Fetch the next digit (4) from the dividend, attach it to 9 and continue: 94 / 645

Let's proceed to step 8:
The number 645 fits into 94 0 times, leaving a remainder of 94.
The next digit of our result is 0. 
Result so far: 34500.0
If we take 0 away from 94, we end up with 94.
Since there are no more digits in the dividend, we add a zero to the remainder making it 940, and continue the process.

Moving on to step 9:
The number 645 fits into 940 1 times, leaving a remainder of 295.
The number 1 becomes the next digit in our result. 
Result so far: 34500.1
Subtracting 645 from 940 leaves us with 295.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2950, and continue the process.

Advancing to step 10:
The number 645 fits into 2950 4 times, leaving a remainder of 370.
The number 4 becomes the next digit in our result. 
Result so far: 34500.14
Subtracting 2580 from 2950 leaves us with 370.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3700, and continue the process.

Going ahead to step 11:
When dividing 3700 by 645, we get 5 with a remainder of 475.
Write down 5 as next digit of the result. 
Result so far: 34500.145
Subtract 3225 from 3700 to get 475.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4750, and continue the process.

Let's proceed to step 12:
If we divide 4750 by 645, we get 7 and a remainder of 235.
The number 7 becomes the next digit in our result. 
Result so far: 34500.1457
If we subtract 4515 from 4750, we get 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Advancing to step 13:
645 can be fit into 2350 3 times, resulting in a remainder of 415.
Put 3 as the next digit of the answer. 
Result so far: 34500.14573
The remainder is 415 after subtracting 1935 from 2350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4150, and continue the process.

Step 14:
645 goes into 4150 6 times with a remainder of 280.
The number 6 becomes the next digit in our result. 
Result so far: 34500.145736
Subtracting 3870 from 4150 leaves us 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.

On to step 15:
The number 645 fits into 2800 4 times, leaving a remainder of 220.
The next digit of our result is 4. 
Result so far: 34500.1457364
If we take 2580 away from 2800, we end up with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Advancing to step 16:
645 can be fit into 2200 3 times, resulting in a remainder of 265.
The number 3 becomes the next digit in our result. 
Result so far: 34500.14573643
If we subtract 1935 from 2200, we get 265.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2650, and continue the process.

After the division, we end up with 34500.14573643 and a remainder of 2.65e-07.