We're dividing 64475400 by 66 
We're looking to find how many times 66 goes into 64475400.

On to step 1:
When dividing 6 by 66, we get 0 with a remainder of 6.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 6 after subtracting 0 from 6.
Take the next digit (4) from the dividend and append it to 6, then repeat: 64 / 66

Moving on to step 2:
If we divide 64 by 66, we get 0 and a remainder of 64.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Fetch the next digit (4) from the dividend, attach it to 64 and continue: 644 / 66

On to step 3:
66 can be fit into 644 9 times, resulting in a remainder of 50.
Put 9 as the next digit of the answer. 
Result so far: 9.0
Deduct 594 from 644 and we're left with 50.
Grab the next digit (7) from the dividend, add it to 50, then carry on: 507 / 66

Step 4:
If we divide 507 by 66, we get 7 and a remainder of 45.
The next digit of our result is 7. 
Result so far: 97.0
Deduct 462 from 507 and we're left with 45.
Fetch the next digit (5) from the dividend, attach it to 45 and continue: 455 / 66

Let's proceed to step 5:
66 can be fit into 455 6 times, resulting in a remainder of 59.
Write down 6 as next digit of the result. 
Result so far: 976.0
If we subtract 396 from 455, we get 59.
Append the next digit (4) from the dividend to 59 and continue with: 594 / 66

Advancing to step 6:
The number 66 fits into 594 9 times, leaving a remainder of 0.
Put 9 as the next digit of the answer. 
Result so far: 9769.0
If we take 594 away from 594, we end up with 0.
Append the next digit (0) from the dividend to 0 and continue with: 0 / 66

Let's proceed to step 7:
0 divided by 66 is 0 with a remainder of 0.
The number 0 becomes the next digit in our result. 
Result so far: 97690.0
If we take 0 away from 0, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 66

Advancing to step 8:
66 goes into 0 0 times with a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 976900.0
If we subtract 0 from 0, we get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 9:
If we divide 0 by 66, we get 0 and a remainder of 0.
Put 0 as the next digit of the answer. 
Result so far: 976900.0
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 10:
0 divided by 66 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 976900.0
Deduct 0 from 0 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Our division results in 976900.0 with a remaining 0.0.