71151008 ÷ 210 
The aim is to understand the frequency of 210 in 71151008.

On to step 1:
The number 210 fits into 7 0 times, leaving a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtract 0 from 7 to get 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 210

Step 2:
71 divided by 210 is 0 with a remainder of 71.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 71 and we're left with 71.
Take the next digit (1) from the dividend and append it to 71, then repeat: 711 / 210

Step 3:
The number 210 fits into 711 3 times, leaving a remainder of 81.
Write down 3 as next digit of the result. 
Result so far: 3.0
If we subtract 630 from 711, we get 81.
Bring next digit (5) of the dividend behind the 81 and repeat the process: 815 / 210

Going ahead to step 4:
210 can be fit into 815 3 times, resulting in a remainder of 185.
The next digit of our result is 3. 
Result so far: 33.0
Deduct 630 from 815 and we're left with 185.
Fetch the next digit (1) from the dividend, attach it to 185 and continue: 1851 / 210

Going ahead to step 5:
If we divide 1851 by 210, we get 8 and a remainder of 171.
Put 8 as the next digit of the answer. 
Result so far: 338.0
Subtract 1680 from 1851 to get 171.
Append the next digit (0) from the dividend to 171 and continue with: 1710 / 210

Step 6:
1710 divided by 210 is 8 with a remainder of 30.
Put 8 as the next digit of the answer. 
Result so far: 3388.0
If we subtract 1680 from 1710, we get 30.
Include the next digit (0) from the dividend after 30, then repeat: 300 / 210

Step 7:
When dividing 300 by 210, we get 1 with a remainder of 90.
Use 1 as the next digit of our solution. 
Result so far: 33881.0
If we subtract 210 from 300, we get 90.
Append the next digit (8) from the dividend to 90 and continue with: 908 / 210

Moving on to step 8:
When dividing 908 by 210, we get 4 with a remainder of 68.
The next digit of our result is 4. 
Result so far: 338814.0
If we subtract 840 from 908, we get 68.
Since there are no more digits in the dividend, we add a zero to the remainder making it 680, and continue the process.

Moving on to step 9:
210 can be fit into 680 3 times, resulting in a remainder of 50.
Record the quotient 3 as the next digit in the result. 
Result so far: 338814.3
Subtracting 630 from 680 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 10:
The number 210 fits into 500 2 times, leaving a remainder of 80.
Write down 2 as next digit of the result. 
Result so far: 338814.32
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.

Let's proceed to step 11:
210 goes into 800 3 times with a remainder of 170.
Use 3 as the next digit of our solution. 
Result so far: 338814.323
The remainder is 170 after subtracting 630 from 800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Step 12:
210 can be fit into 1700 8 times, resulting in a remainder of 20.
The next digit of our result is 8. 
Result so far: 338814.3238
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.

Step 13:
210 goes into 200 0 times with a remainder of 200.
Record the quotient 0 as the next digit in the result. 
Result so far: 338814.3238
If we subtract 0 from 200, we get 200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2000, and continue the process.

Advancing to step 14:
The number 210 fits into 2000 9 times, leaving a remainder of 110.
The next digit of our result is 9. 
Result so far: 338814.323809
Subtract 1890 from 2000 to get 110.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1100, and continue the process.

Advancing to step 15:
If we divide 1100 by 210, we get 5 and a remainder of 50.
Put 5 as the next digit of the answer. 
Result so far: 338814.3238095
Subtracting 1050 from 1100 leaves us with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Moving on to step 16:
The number 210 fits into 500 2 times, leaving a remainder of 80.
Write down 2 as next digit of the result. 
Result so far: 338814.32380952
If we subtract 420 from 500, we 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.

The final outcome is 338814.32380952, with a leftover of 8e-08.