We divide 78437709 by 64
We want to figure out the number of times 78437709 can be divided by 64.

Let's proceed to step 1:
64 goes into 7 0 times with a remainder of 7.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 64

Step 2:
If we divide 78 by 64, we get 1 and a remainder of 14.
Put 1 as the next digit of the answer. 
Result so far: 1.0
If we subtract 64 from 78, we get 14.
Fetch the next digit (4) from the dividend, attach it to 14 and continue: 144 / 64

On to step 3:
When dividing 144 by 64, we get 2 with a remainder of 16.
The next digit of our result is 2. 
Result so far: 12.0
The remainder is 16 after subtracting 128 from 144.
Take the next digit (3) from the dividend and append it to 16, then repeat: 163 / 64

Let's proceed to step 4:
If we divide 163 by 64, we get 2 and a remainder of 35.
Write down 2 as next digit of the result. 
Result so far: 122.0
If we subtract 128 from 163, we get 35.
Take the next digit (7) from the dividend and append it to 35, then repeat: 357 / 64

On to step 5:
The number 64 fits into 357 5 times, leaving a remainder of 37.
Record the quotient 5 as the next digit in the result. 
Result so far: 1225.0
The remainder is 37 after subtracting 320 from 357.
Bring next digit (7) of the dividend behind the 37 and repeat the process: 377 / 64

Going ahead to step 6:
The number 64 fits into 377 5 times, leaving a remainder of 57.
Write down 5 as next digit of the result. 
Result so far: 12255.0
The remainder is 57 after subtracting 320 from 377.
Take the next digit (0) from the dividend and append it to 57, then repeat: 570 / 64

Going ahead to step 7:
When dividing 570 by 64, we get 8 with a remainder of 58.
The next digit of our result is 8. 
Result so far: 122558.0
Subtracting 512 from 570 leaves us with 58.
Take the next digit (9) from the dividend and append it to 58, then repeat: 589 / 64

Moving on to step 8:
If we divide 589 by 64, we get 9 and a remainder of 13.
The next digit of our result is 9. 
Result so far: 1225589.0
If we take 576 away from 589, we end up with 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

Let's proceed to step 9:
If we divide 130 by 64, we get 2 and a remainder of 2.
Write down 2 as next digit of the result. 
Result so far: 1225589.2
If we subtract 128 from 130, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

On to step 10:
The number 64 fits into 20 0 times, leaving a remainder of 20.
The next digit of our result is 0. 
Result so far: 1225589.2
Subtracting 0 from 20 leaves us with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Going ahead to step 11:
64 can be fit into 200 3 times, resulting in a remainder of 8.
Use 3 as the next digit of our solution. 
Result so far: 1225589.203
The remainder is 8 after subtracting 192 from 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 80, and continue the process.

Let's proceed to step 12:
80 divided by 64 is 1 with a remainder of 16.
Write down 1 as next digit of the result. 
Result so far: 1225589.2031
Deduct 64 from 80 and we're left with 16.
Since there are no more digits in the dividend, we add a zero to the remainder making it 160, and continue the process.

Let's proceed to step 13:
160 divided by 64 is 2 with a remainder of 32.
Record the quotient 2 as the next digit in the result. 
Result so far: 1225589.20312
Subtracting 128 from 160 leaves us with 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Step 14:
The number 64 fits into 320 5 times, leaving a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 1225589.203125
Subtract 320 from 320 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 15:
0 divided by 64 is 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 1225589.203125
Subtracting 0 from 0 leaves us 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.

On to step 16:
The number 64 fits into 0 0 times, leaving a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1225589.203125
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.

After the division, we end up with 1225589.203125 and a remainder of 0.0.