7657634 ÷ 210 
The aim is to understand the frequency of 210 in 7657634.

Step 1:
7 divided by 210 is 0 with a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Grab the next digit (6) from the dividend, add it to 7, then carry on: 76 / 210

Step 2:
The number 210 fits into 76 0 times, leaving a remainder of 76.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 76, we end up with 76.
Take the next digit (5) from the dividend and append it to 76, then repeat: 765 / 210

On to step 3:
When dividing 765 by 210, we get 3 with a remainder of 135.
Put 3 as the next digit of the answer. 
Result so far: 3.0
Subtracting 630 from 765 leaves us with 135.
Grab the next digit (7) from the dividend, add it to 135, then carry on: 1357 / 210

Advancing to step 4:
210 can be fit into 1357 6 times, resulting in a remainder of 97.
The next digit of our result is 6. 
Result so far: 36.0
If we subtract 1260 from 1357, we get 97.
Append the next digit (6) from the dividend to 97 and continue with: 976 / 210

Moving on to step 5:
210 can be fit into 976 4 times, resulting in a remainder of 136.
The number 4 becomes the next digit in our result. 
Result so far: 364.0
If we subtract 840 from 976, we get 136.
Include the next digit (3) from the dividend after 136, then repeat: 1363 / 210

Going ahead to step 6:
When dividing 1363 by 210, we get 6 with a remainder of 103.
Write down 6 as next digit of the result. 
Result so far: 3646.0
If we take 1260 away from 1363, we end up with 103.
Take the next digit (4) from the dividend and append it to 103, then repeat: 1034 / 210

Advancing to step 7:
1034 divided by 210 is 4 with a remainder of 194.
The next digit of our result is 4. 
Result so far: 36464.0
Deduct 840 from 1034 and we're left with 194.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1940, and continue the process.

Advancing to step 8:
If we divide 1940 by 210, we get 9 and a remainder of 50.
Write down 9 as next digit of the result. 
Result so far: 36464.9
If we subtract 1890 from 1940, we get 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Going ahead to step 9:
When dividing 500 by 210, we get 2 with a remainder of 80.
Use 2 as the next digit of our solution. 
Result so far: 36464.92
Subtract 420 from 500 to get 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

On to step 10:
800 divided by 210 is 3 with a remainder of 170.
Put 3 as the next digit of the answer. 
Result so far: 36464.923
Subtract 630 from 800 to get 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Advancing to step 11:
If we divide 1700 by 210, we get 8 and a remainder of 20.
Write down 8 as next digit of the result. 
Result so far: 36464.9238
The remainder is 20 after subtracting 1680 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Let's proceed to step 12:
When dividing 200 by 210, we get 0 with a remainder of 200.
The next digit of our result is 0. 
Result so far: 36464.9238
Deduct 0 from 200 and we're left with 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Moving on to step 13:
210 can be fit into 2000 9 times, resulting in a remainder of 110.
Put 9 as the next digit of the answer. 
Result so far: 36464.923809
The remainder is 110 after subtracting 1890 from 2000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Moving on to step 14:
When dividing 1100 by 210, we get 5 with a remainder of 50.
The number 5 becomes the next digit in our result. 
Result so far: 36464.9238095
The remainder is 50 after subtracting 1050 from 1100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Advancing to step 15:
210 goes into 500 2 times with a remainder of 80.
Use 2 as the next digit of our solution. 
Result so far: 36464.92380952
Subtracting 420 from 500 leaves us with 80.
Since there are no more digits in the dividend, we add a zero to the remainder making it 800, and continue the process.

The final result is 36464.92380952 with a remainder of 8e-08.