Let's divide 19447221 by 210
The aim is to understand the frequency of 210 in 19447221.

On to step 1:
When dividing 1 by 210, we get 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 1 and we're left with 1.
Take the next digit (9) from the dividend and append it to 1, then repeat: 19 / 210

Step 2:
When dividing 19 by 210, we get 0 with a remainder of 19.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 19 leaves us with 19.
Include the next digit (4) from the dividend after 19, then repeat: 194 / 210

Let's proceed to step 3:
The number 210 fits into 194 0 times, leaving a remainder of 194.
The next digit of our result is 0. 
Result so far: 0.0
Deduct 0 from 194 and we're left with 194.
Take the next digit (4) from the dividend and append it to 194, then repeat: 1944 / 210

Advancing to step 4:
210 goes into 1944 9 times with a remainder of 54.
Write down 9 as next digit of the result. 
Result so far: 9.0
Deduct 1890 from 1944 and we're left with 54.
Append the next digit (7) from the dividend to 54 and continue with: 547 / 210

On to step 5:
The number 210 fits into 547 2 times, leaving a remainder of 127.
The next digit of our result is 2. 
Result so far: 92.0
If we take 420 away from 547, we end up with 127.
Append the next digit (2) from the dividend to 127 and continue with: 1272 / 210

Moving on to step 6:
When dividing 1272 by 210, we get 6 with a remainder of 12.
The number 6 becomes the next digit in our result. 
Result so far: 926.0
The remainder is 12 after subtracting 1260 from 1272.
Bring next digit (2) of the dividend behind the 12 and repeat the process: 122 / 210

Moving on to step 7:
When dividing 122 by 210, we get 0 with a remainder of 122.
The next digit of our result is 0. 
Result so far: 9260.0
The remainder is 122 after subtracting 0 from 122.
Append the next digit (1) from the dividend to 122 and continue with: 1221 / 210

Advancing to step 8:
210 can be fit into 1221 5 times, resulting in a remainder of 171.
Use 5 as the next digit of our solution. 
Result so far: 92605.0
Deduct 1050 from 1221 and we're left with 171.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1710, and continue the process.

Going ahead to step 9:
1710 divided by 210 is 8 with a remainder of 30.
Record the quotient 8 as the next digit in the result. 
Result so far: 92605.8
The remainder is 30 after subtracting 1680 from 1710.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 10:
300 divided by 210 is 1 with a remainder of 90.
Use 1 as the next digit of our solution. 
Result so far: 92605.81
If we subtract 210 from 300, we get 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Let's proceed to step 11:
900 divided by 210 is 4 with a remainder of 60.
The next digit of our result is 4. 
Result so far: 92605.814
The remainder is 60 after subtracting 840 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 12:
600 divided by 210 is 2 with a remainder of 180.
The next digit of our result is 2. 
Result so far: 92605.8142
Deduct 420 from 600 and we're left with 180.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Going ahead to step 13:
The number 210 fits into 1800 8 times, leaving a remainder of 120.
Record the quotient 8 as the next digit in the result. 
Result so far: 92605.81428
Subtracting 1680 from 1800 leaves us with 120.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1200, and continue the process.

Let's proceed to step 14:
If we divide 1200 by 210, we get 5 and a remainder of 150.
Write down 5 as next digit of the result. 
Result so far: 92605.814285
If we take 1050 away from 1200, we end up with 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

On to step 15:
210 can be fit into 1500 7 times, resulting in a remainder of 30.
Record the quotient 7 as the next digit in the result. 
Result so far: 92605.8142857
Subtracting 1470 from 1500 leaves us with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Going ahead to step 16:
The number 210 fits into 300 1 times, leaving a remainder of 90.
Use 1 as the next digit of our solution. 
Result so far: 92605.81428571
Deduct 210 from 300 and we're left with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

The quotient of the division is 92605.81428571, and the remainder is 9e-08.