We divide 6545721 by 225
We want to figure out the number of times 6545721 can be divided by 225.

Advancing to step 1:
6 divided by 225 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Take the next digit (5) from the dividend and append it to 6, then repeat: 65 / 225

Moving on to step 2:
The number 225 fits into 65 0 times, leaving a remainder of 65.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 65, we get 65.
Append the next digit (4) from the dividend to 65 and continue with: 654 / 225

Let's proceed to step 3:
225 can be fit into 654 2 times, resulting in a remainder of 204.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 450 from 654 and we're left with 204.
Append the next digit (5) from the dividend to 204 and continue with: 2045 / 225

Moving on to step 4:
The number 225 fits into 2045 9 times, leaving a remainder of 20.
Record the quotient 9 as the next digit in the result. 
Result so far: 29.0
Deduct 2025 from 2045 and we're left with 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 225

Step 5:
If we divide 207 by 225, we get 0 and a remainder of 207.
Record the quotient 0 as the next digit in the result. 
Result so far: 290.0
If we take 0 away from 207, we end up with 207.
Bring next digit (2) of the dividend behind the 207 and repeat the process: 2072 / 225

On to step 6:
When dividing 2072 by 225, we get 9 with a remainder of 47.
The number 9 becomes the next digit in our result. 
Result so far: 2909.0
If we take 2025 away from 2072, we end up with 47.
Append the next digit (1) from the dividend to 47 and continue with: 471 / 225

Moving on to step 7:
471 divided by 225 is 2 with a remainder of 21.
The next digit of our result is 2. 
Result so far: 29092.0
Deduct 450 from 471 and we're left with 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

Moving on to step 8:
225 can be fit into 210 0 times, resulting in a remainder of 210.
Put 0 as the next digit of the answer. 
Result so far: 29092.0
Deduct 0 from 210 and we're left with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Let's proceed to step 9:
225 can be fit into 2100 9 times, resulting in a remainder of 75.
The number 9 becomes the next digit in our result. 
Result so far: 29092.09
If we subtract 2025 from 2100, we get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Moving on to step 10:
225 goes into 750 3 times with a remainder of 75.
Put 3 as the next digit of the answer. 
Result so far: 29092.093
The remainder is 75 after subtracting 675 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

Advancing to step 11:
When dividing 750 by 225, we get 3 with a remainder of 75.
The number 3 becomes the next digit in our result. 
Result so far: 29092.0933
Deduct 675 from 750 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.

After the division, we end up with 29092.0933 and a remainder of 0.00075.