We're dividing 66722591 by 225 
We want to divide 66722591 by 225.

Advancing to step 1:
225 can be fit into 6 0 times, resulting in a remainder of 6.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 6, we end up with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 225

On to step 2:
The number 225 fits into 66 0 times, leaving a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Take the next digit (7) from the dividend and append it to 66, then repeat: 667 / 225

Step 3:
If we divide 667 by 225, we get 2 and a remainder of 217.
Put 2 as the next digit of the answer. 
Result so far: 2.0
Subtracting 450 from 667 leaves us with 217.
Take the next digit (2) from the dividend and append it to 217, then repeat: 2172 / 225

Advancing to step 4:
If we divide 2172 by 225, we get 9 and a remainder of 147.
Write down 9 as next digit of the result. 
Result so far: 29.0
Deduct 2025 from 2172 and we're left with 147.
Append the next digit (2) from the dividend to 147 and continue with: 1472 / 225

Step 5:
When dividing 1472 by 225, we get 6 with a remainder of 122.
Record the quotient 6 as the next digit in the result. 
Result so far: 296.0
If we take 1350 away from 1472, we end up with 122.
Append the next digit (5) from the dividend to 122 and continue with: 1225 / 225

On to step 6:
1225 divided by 225 is 5 with a remainder of 100.
Put 5 as the next digit of the answer. 
Result so far: 2965.0
The remainder is 100 after subtracting 1125 from 1225.
Take the next digit (9) from the dividend and append it to 100, then repeat: 1009 / 225

Let's proceed to step 7:
225 can be fit into 1009 4 times, resulting in a remainder of 109.
Write down 4 as next digit of the result. 
Result so far: 29654.0
The remainder is 109 after subtracting 900 from 1009.
Fetch the next digit (1) from the dividend, attach it to 109 and continue: 1091 / 225

Going ahead to step 8:
225 goes into 1091 4 times with a remainder of 191.
Put 4 as the next digit of the answer. 
Result so far: 296544.0
If we take 900 away from 1091, we end up with 191.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1910, and continue the process.

Advancing to step 9:
225 can be fit into 1910 8 times, resulting in a remainder of 110.
The next digit of our result is 8. 
Result so far: 296544.8
Deduct 1800 from 1910 and we're left with 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 10:
The number 225 fits into 1100 4 times, leaving a remainder of 200.
The number 4 becomes the next digit in our result. 
Result so far: 296544.84
Subtract 900 from 1100 to get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 11:
2000 divided by 225 is 8 with a remainder of 200.
The next digit of our result is 8. 
Result so far: 296544.848
If we take 1800 away from 2000, we end up with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

On to step 12:
If we divide 2000 by 225, we get 8 and a remainder of 200.
The next digit of our result is 8. 
Result so far: 296544.8488
Subtracting 1800 from 2000 leaves us with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

The final outcome is 296544.8488, with a leftover of 0.002.