Let's divide 66388950 by 656
The aim is to understand the frequency of 656 in 66388950.

Step 1:
If we divide 6 by 656, we get 0 and a remainder of 6.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 6 and we're left with 6.
Fetch the next digit (6) from the dividend, attach it to 6 and continue: 66 / 656

Moving on to step 2:
When dividing 66 by 656, we get 0 with a remainder of 66.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Take the next digit (3) from the dividend and append it to 66, then repeat: 663 / 656

Let's proceed to step 3:
656 can be fit into 663 1 times, resulting in a remainder of 7.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 656 from 663, we get 7.
Grab the next digit (8) from the dividend, add it to 7, then carry on: 78 / 656

Moving on to step 4:
If we divide 78 by 656, we get 0 and a remainder of 78.
The next digit of our result is 0. 
Result so far: 10.0
If we subtract 0 from 78, we get 78.
Include the next digit (8) from the dividend after 78, then repeat: 788 / 656

Step 5:
The number 656 fits into 788 1 times, leaving a remainder of 132.
Write down 1 as next digit of the result. 
Result so far: 101.0
The remainder is 132 after subtracting 656 from 788.
Take the next digit (9) from the dividend and append it to 132, then repeat: 1329 / 656

Step 6:
When dividing 1329 by 656, we get 2 with a remainder of 17.
Put 2 as the next digit of the answer. 
Result so far: 1012.0
Deduct 1312 from 1329 and we're left with 17.
Grab the next digit (5) from the dividend, add it to 17, then carry on: 175 / 656

Moving on to step 7:
If we divide 175 by 656, we get 0 and a remainder of 175.
Write down 0 as next digit of the result. 
Result so far: 10120.0
Subtracting 0 from 175 leaves us with 175.
Grab the next digit (0) from the dividend, add it to 175, then carry on: 1750 / 656

On to step 8:
When dividing 1750 by 656, we get 2 with a remainder of 438.
The next digit of our result is 2. 
Result so far: 101202.0
The remainder is 438 after subtracting 1312 from 1750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4380, and continue the process.

Step 9:
If we divide 4380 by 656, we get 6 and a remainder of 444.
Write down 6 as next digit of the result. 
Result so far: 101202.6
If we take 3936 away from 4380, we end up with 444.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4440, and continue the process.

Moving on to step 10:
656 can be fit into 4440 6 times, resulting in a remainder of 504.
Use 6 as the next digit of our solution. 
Result so far: 101202.66
If we take 3936 away from 4440, we end up with 504.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5040, and continue the process.

After the division, we end up with 101202.66 and a remainder of 0.504.