Let's divide 60897739 by 210
The aim is to understand the frequency of 210 in 60897739.

Going ahead to step 1:
The number 210 fits into 6 0 times, leaving a remainder of 6.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 6 leaves us with 6.
Fetch the next digit (0) from the dividend, attach it to 6 and continue: 60 / 210

Step 2:
210 can be fit into 60 0 times, resulting in a remainder of 60.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 60, we end up with 60.
Append the next digit (8) from the dividend to 60 and continue with: 608 / 210

Step 3:
The number 210 fits into 608 2 times, leaving a remainder of 188.
Use 2 as the next digit of our solution. 
Result so far: 2.0
Deduct 420 from 608 and we're left with 188.
Fetch the next digit (9) from the dividend, attach it to 188 and continue: 1889 / 210

Advancing to step 4:
1889 divided by 210 is 8 with a remainder of 209.
Write down 8 as next digit of the result. 
Result so far: 28.0
If we take 1680 away from 1889, we end up with 209.
Bring next digit (7) of the dividend behind the 209 and repeat the process: 2097 / 210

Let's proceed to step 5:
210 goes into 2097 9 times with a remainder of 207.
Record the quotient 9 as the next digit in the result. 
Result so far: 289.0
If we take 1890 away from 2097, we end up with 207.
Take the next digit (7) from the dividend and append it to 207, then repeat: 2077 / 210

On to step 6:
210 can be fit into 2077 9 times, resulting in a remainder of 187.
Use 9 as the next digit of our solution. 
Result so far: 2899.0
The remainder is 187 after subtracting 1890 from 2077.
Append the next digit (3) from the dividend to 187 and continue with: 1873 / 210

Going ahead to step 7:
The number 210 fits into 1873 8 times, leaving a remainder of 193.
The number 8 becomes the next digit in our result. 
Result so far: 28998.0
If we subtract 1680 from 1873, we get 193.
Include the next digit (9) from the dividend after 193, then repeat: 1939 / 210

Moving on to step 8:
1939 divided by 210 is 9 with a remainder of 49.
Use 9 as the next digit of our solution. 
Result so far: 289989.0
If we take 1890 away from 1939, we end up with 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Moving on to step 9:
The number 210 fits into 490 2 times, leaving a remainder of 70.
Record the quotient 2 as the next digit in the result. 
Result so far: 289989.2
Subtract 420 from 490 to get 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Let's proceed to step 10:
When dividing 700 by 210, we get 3 with a remainder of 70.
The number 3 becomes the next digit in our result. 
Result so far: 289989.23
Deduct 630 from 700 and we're left with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

Moving on to step 11:
If we divide 700 by 210, we get 3 and a remainder of 70.
The number 3 becomes the next digit in our result. 
Result so far: 289989.233
Subtracting 630 from 700 leaves us with 70.
Since there are no more digits in the dividend, we add a zero to the remainder making it 700, and continue the process.

After the division, we end up with 289989.233 and a remainder of 0.007.