66074765 ÷ 640 
We're looking to find how many times 640 goes into 66074765.

Let's proceed to step 1:
When dividing 6 by 640, 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.
Grab the next digit (6) from the dividend, add it to 6, then carry on: 66 / 640

Advancing to step 2:
640 goes into 66 0 times with a remainder of 66.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 66, we get 66.
Grab the next digit (0) from the dividend, add it to 66, then carry on: 660 / 640

Let's proceed to step 3:
The number 640 fits into 660 1 times, leaving a remainder of 20.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 640 from 660, we get 20.
Bring next digit (7) of the dividend behind the 20 and repeat the process: 207 / 640

Moving on to step 4:
The number 640 fits into 207 0 times, leaving a remainder of 207.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 207, we get 207.
Fetch the next digit (4) from the dividend, attach it to 207 and continue: 2074 / 640

Let's proceed to step 5:
If we divide 2074 by 640, we get 3 and a remainder of 154.
Write down 3 as next digit of the result. 
Result so far: 103.0
Subtract 1920 from 2074 to get 154.
Grab the next digit (7) from the dividend, add it to 154, then carry on: 1547 / 640

Let's proceed to step 6:
If we divide 1547 by 640, we get 2 and a remainder of 267.
The number 2 becomes the next digit in our result. 
Result so far: 1032.0
Subtract 1280 from 1547 to get 267.
Take the next digit (6) from the dividend and append it to 267, then repeat: 2676 / 640

Moving on to step 7:
If we divide 2676 by 640, we get 4 and a remainder of 116.
The next digit of our result is 4. 
Result so far: 10324.0
If we subtract 2560 from 2676, we get 116.
Append the next digit (5) from the dividend to 116 and continue with: 1165 / 640

On to step 8:
If we divide 1165 by 640, we get 1 and a remainder of 525.
Put 1 as the next digit of the answer. 
Result so far: 103241.0
Subtracting 640 from 1165 leaves us with 525.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5250, and continue the process.

Step 9:
640 goes into 5250 8 times with a remainder of 130.
Put 8 as the next digit of the answer. 
Result so far: 103241.8
If we take 5120 away from 5250, we end up with 130.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1300, and continue the process.

Going ahead to step 10:
The number 640 fits into 1300 2 times, leaving a remainder of 20.
Write down 2 as next digit of the result. 
Result so far: 103241.82
The remainder is 20 after subtracting 1280 from 1300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Step 11:
640 goes into 200 0 times with a remainder of 200.
The number 0 becomes the next digit in our result. 
Result so far: 103241.82
Subtracting 0 from 200 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.

Going ahead to step 12:
640 goes into 2000 3 times with a remainder of 80.
The number 3 becomes the next digit in our result. 
Result so far: 103241.8203
If we subtract 1920 from 2000, we get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 13:
The number 640 fits into 800 1 times, leaving a remainder of 160.
Use 1 as the next digit of our solution. 
Result so far: 103241.82031
Subtracting 640 from 800 leaves us with 160.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1600, and continue the process.

Moving on to step 14:
640 can be fit into 1600 2 times, resulting in a remainder of 320.
Write down 2 as next digit of the result. 
Result so far: 103241.820312
Subtract 1280 from 1600 to get 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

On to step 15:
When dividing 3200 by 640, we get 5 with a remainder of 0.
Use 5 as the next digit of our solution. 
Result so far: 103241.8203125
Subtract 3200 from 3200 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.

Advancing to step 16:
640 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 103241.8203125
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.

The final outcome is 103241.8203125, with a leftover of 0.0.