66533448 divided by 856 
The aim is to understand the frequency of 856 in 66533448.

On to step 1:
6 divided by 856 is 0 with a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 6 to get 6.
Append the next digit (6) from the dividend to 6 and continue with: 66 / 856

On to step 2:
The number 856 fits into 66 0 times, leaving a remainder of 66.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Grab the next digit (5) from the dividend, add it to 66, then carry on: 665 / 856

On to step 3:
665 divided by 856 is 0 with a remainder of 665.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 665 after subtracting 0 from 665.
Append the next digit (3) from the dividend to 665 and continue with: 6653 / 856

Step 4:
6653 divided by 856 is 7 with a remainder of 661.
The next digit of our result is 7. 
Result so far: 7.0
Subtract 5992 from 6653 to get 661.
Take the next digit (3) from the dividend and append it to 661, then repeat: 6613 / 856

Let's proceed to step 5:
When dividing 6613 by 856, we get 7 with a remainder of 621.
Put 7 as the next digit of the answer. 
Result so far: 77.0
Subtracting 5992 from 6613 leaves us with 621.
Include the next digit (4) from the dividend after 621, then repeat: 6214 / 856

Advancing to step 6:
The number 856 fits into 6214 7 times, leaving a remainder of 222.
Record the quotient 7 as the next digit in the result. 
Result so far: 777.0
If we subtract 5992 from 6214, we get 222.
Append the next digit (4) from the dividend to 222 and continue with: 2224 / 856

Let's proceed to step 7:
856 can be fit into 2224 2 times, resulting in a remainder of 512.
Put 2 as the next digit of the answer. 
Result so far: 7772.0
Deduct 1712 from 2224 and we're left with 512.
Include the next digit (8) from the dividend after 512, then repeat: 5128 / 856

Step 8:
The number 856 fits into 5128 5 times, leaving a remainder of 848.
Use 5 as the next digit of our solution. 
Result so far: 77725.0
The remainder is 848 after subtracting 4280 from 5128.
Since there are no more digits in the dividend, we add a zero to the remainder making it 8480, and continue the process.

Let's proceed to step 9:
856 can be fit into 8480 9 times, resulting in a remainder of 776.
The next digit of our result is 9. 
Result so far: 77725.9
If we take 7704 away from 8480, we end up with 776.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7760, and continue the process.

Moving on to step 10:
If we divide 7760 by 856, we get 9 and a remainder of 56.
The next digit of our result is 9. 
Result so far: 77725.99
If we take 7704 away from 7760, we end up with 56.
Since there are no more digits in the dividend, we add a zero to the remainder making it 560, and continue the process.

After the division, we end up with 77725.99 and a remainder of 0.056.