71015413 ÷ 412 
The aim is to understand the frequency of 412 in 71015413.

Moving on to step 1:
When dividing 7 by 412, we get 0 with a remainder of 7.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 7 after subtracting 0 from 7.
Append the next digit (1) from the dividend to 7 and continue with: 71 / 412

Let's proceed to step 2:
71 divided by 412 is 0 with a remainder of 71.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 71 leaves us with 71.
Bring next digit (0) of the dividend behind the 71 and repeat the process: 710 / 412

Going ahead to step 3:
The number 412 fits into 710 1 times, leaving a remainder of 298.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
If we subtract 412 from 710, we get 298.
Bring next digit (1) of the dividend behind the 298 and repeat the process: 2981 / 412

Moving on to step 4:
If we divide 2981 by 412, we get 7 and a remainder of 97.
The number 7 becomes the next digit in our result. 
Result so far: 17.0
Deduct 2884 from 2981 and we're left with 97.
Bring next digit (5) of the dividend behind the 97 and repeat the process: 975 / 412

Going ahead to step 5:
975 divided by 412 is 2 with a remainder of 151.
Use 2 as the next digit of our solution. 
Result so far: 172.0
Subtract 824 from 975 to get 151.
Append the next digit (4) from the dividend to 151 and continue with: 1514 / 412

Let's proceed to step 6:
412 can be fit into 1514 3 times, resulting in a remainder of 278.
Put 3 as the next digit of the answer. 
Result so far: 1723.0
The remainder is 278 after subtracting 1236 from 1514.
Include the next digit (1) from the dividend after 278, then repeat: 2781 / 412

Step 7:
2781 divided by 412 is 6 with a remainder of 309.
Put 6 as the next digit of the answer. 
Result so far: 17236.0
If we take 2472 away from 2781, we end up with 309.
Take the next digit (3) from the dividend and append it to 309, then repeat: 3093 / 412

Advancing to step 8:
When dividing 3093 by 412, we get 7 with a remainder of 209.
Record the quotient 7 as the next digit in the result. 
Result so far: 172367.0
If we take 2884 away from 3093, we end up with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Step 9:
The number 412 fits into 2090 5 times, leaving a remainder of 30.
Put 5 as the next digit of the answer. 
Result so far: 172367.5
Subtracting 2060 from 2090 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.

Let's proceed to step 10:
412 goes into 300 0 times with a remainder of 300.
Record the quotient 0 as the next digit in the result. 
Result so far: 172367.5
The remainder is 300 after subtracting 0 from 300.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 11:
3000 divided by 412 is 7 with a remainder of 116.
Use 7 as the next digit of our solution. 
Result so far: 172367.507
Subtracting 2884 from 3000 leaves us with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Advancing to step 12:
412 can be fit into 1160 2 times, resulting in a remainder of 336.
Write down 2 as next digit of the result. 
Result so far: 172367.5072
If we subtract 824 from 1160, we get 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

On to step 13:
If we divide 3360 by 412, we get 8 and a remainder of 64.
The next digit of our result is 8. 
Result so far: 172367.50728
The remainder is 64 after subtracting 3296 from 3360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 14:
If we divide 640 by 412, we get 1 and a remainder of 228.
Put 1 as the next digit of the answer. 
Result so far: 172367.507281
Subtract 412 from 640 to get 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Advancing to step 15:
412 goes into 2280 5 times with a remainder of 220.
Write down 5 as next digit of the result. 
Result so far: 172367.5072815
If we subtract 2060 from 2280, we get 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

Going ahead to step 16:
412 can be fit into 2200 5 times, resulting in a remainder of 140.
Use 5 as the next digit of our solution. 
Result so far: 172367.50728155
If we subtract 2060 from 2200, we get 140.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1400, and continue the process.

The final outcome is 172367.50728155, with a leftover of 1.4e-07.