We look at the division of 78538268 by 64 
We're looking to find how many times 64 goes into 78538268.

Step 1:
7 divided by 64 is 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (8) from the dividend to 7 and continue with: 78 / 64

On to step 2:
When dividing 78 by 64, we get 1 with a remainder of 14.
The next digit of our result is 1. 
Result so far: 1.0
If we subtract 64 from 78, we get 14.
Bring next digit (5) of the dividend behind the 14 and repeat the process: 145 / 64

Moving on to step 3:
If we divide 145 by 64, we get 2 and a remainder of 17.
Use 2 as the next digit of our solution. 
Result so far: 12.0
If we take 128 away from 145, we end up with 17.
Bring next digit (3) of the dividend behind the 17 and repeat the process: 173 / 64

Step 4:
When dividing 173 by 64, we get 2 with a remainder of 45.
Write down 2 as next digit of the result. 
Result so far: 122.0
Subtracting 128 from 173 leaves us with 45.
Bring next digit (8) of the dividend behind the 45 and repeat the process: 458 / 64

On to step 5:
458 divided by 64 is 7 with a remainder of 10.
Record the quotient 7 as the next digit in the result. 
Result so far: 1227.0
Subtracting 448 from 458 leaves us with 10.
Include the next digit (2) from the dividend after 10, then repeat: 102 / 64

Advancing to step 6:
When dividing 102 by 64, we get 1 with a remainder of 38.
The number 1 becomes the next digit in our result. 
Result so far: 12271.0
If we subtract 64 from 102, we get 38.
Append the next digit (6) from the dividend to 38 and continue with: 386 / 64

Going ahead to step 7:
When dividing 386 by 64, we get 6 with a remainder of 2.
Write down 6 as next digit of the result. 
Result so far: 122716.0
Subtracting 384 from 386 leaves us with 2.
Include the next digit (8) from the dividend after 2, then repeat: 28 / 64

Advancing to step 8:
The number 64 fits into 28 0 times, leaving a remainder of 28.
Write down 0 as next digit of the result. 
Result so far: 1227160.0
If we subtract 0 from 28, we get 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Going ahead to step 9:
When dividing 280 by 64, we get 4 with a remainder of 24.
Record the quotient 4 as the next digit in the result. 
Result so far: 1227160.4
Subtract 256 from 280 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

Going ahead to step 10:
240 divided by 64 is 3 with a remainder of 48.
Write down 3 as next digit of the result. 
Result so far: 1227160.43
Subtracting 192 from 240 leaves us with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Let's proceed to step 11:
The number 64 fits into 480 7 times, leaving a remainder of 32.
Write down 7 as next digit of the result. 
Result so far: 1227160.437
Deduct 448 from 480 and we're left 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.

Moving on to step 12:
64 can be fit into 320 5 times, resulting in a remainder of 0.
Record the quotient 5 as the next digit in the result. 
Result so far: 1227160.4375
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 13:
64 can be fit into 0 0 times, resulting in a remainder of 0.
The next digit of our result is 0. 
Result so far: 1227160.4375
If we take 0 away from 0, we end up 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.

Moving on to step 14:
If we divide 0 by 64, we get 0 and a remainder of 0.
Record the quotient 0 as the next digit in the result. 
Result so far: 1227160.4375
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.

After the division, we end up with 1227160.4375 and a remainder of 0.0.