661872 divided by 97 
The aim is to understand the frequency of 97 in 661872.

Going ahead to step 1:
When dividing 6 by 97, we get 0 with a remainder of 6.
Record the quotient 0 as the next digit in 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 / 97

On to step 2:
97 can be fit into 66 0 times, resulting in a remainder of 66.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 66, we end up with 66.
Fetch the next digit (1) from the dividend, attach it to 66 and continue: 661 / 97

Going ahead to step 3:
When dividing 661 by 97, we get 6 with a remainder of 79.
Write down 6 as next digit of the result. 
Result so far: 6.0
The remainder is 79 after subtracting 582 from 661.
Grab the next digit (8) from the dividend, add it to 79, then carry on: 798 / 97

Step 4:
When dividing 798 by 97, we get 8 with a remainder of 22.
Record the quotient 8 as the next digit in the result. 
Result so far: 68.0
Subtract 776 from 798 to get 22.
Bring next digit (7) of the dividend behind the 22 and repeat the process: 227 / 97

Let's proceed to step 5:
When dividing 227 by 97, we get 2 with a remainder of 33.
The number 2 becomes the next digit in our result. 
Result so far: 682.0
If we subtract 194 from 227, we get 33.
Append the next digit (2) from the dividend to 33 and continue with: 332 / 97

Advancing to step 6:
97 goes into 332 3 times with a remainder of 41.
Record the quotient 3 as the next digit in the result. 
Result so far: 6823.0
Subtracting 291 from 332 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 7:
If we divide 410 by 97, we get 4 and a remainder of 22.
Write down 4 as next digit of the result. 
Result so far: 6823.4
If we subtract 388 from 410, we get 22.
Since there are no more digits in the dividend, we add a zero to the remainder making it 220, and continue the process.

Going ahead to step 8:
The number 97 fits into 220 2 times, leaving a remainder of 26.
Put 2 as the next digit of the answer. 
Result so far: 6823.42
The remainder is 26 after subtracting 194 from 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 9:
97 can be fit into 260 2 times, resulting in a remainder of 66.
The number 2 becomes the next digit in our result. 
Result so far: 6823.422
The remainder is 66 after subtracting 194 from 260.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Our division results in 6823.422 with a remaining 0.0066.