We divide 71799963 by 816
The aim is to understand the frequency of 816 in 71799963.

Advancing to step 1:
816 can be fit into 7 0 times, resulting in a remainder of 7.
The next digit of our result is 0. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Bring next digit (1) of the dividend behind the 7 and repeat the process: 71 / 816

Advancing to step 2:
When dividing 71 by 816, we get 0 with a remainder of 71.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 71 leaves us with 71.
Take the next digit (7) from the dividend and append it to 71, then repeat: 717 / 816

Advancing to step 3:
816 can be fit into 717 0 times, resulting in a remainder of 717.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 717, we get 717.
Include the next digit (9) from the dividend after 717, then repeat: 7179 / 816

Going ahead to step 4:
When dividing 7179 by 816, we get 8 with a remainder of 651.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
Subtracting 6528 from 7179 leaves us with 651.
Bring next digit (9) of the dividend behind the 651 and repeat the process: 6519 / 816

Moving on to step 5:
If we divide 6519 by 816, we get 7 and a remainder of 807.
The number 7 becomes the next digit in our result. 
Result so far: 87.0
The remainder is 807 after subtracting 5712 from 6519.
Append the next digit (9) from the dividend to 807 and continue with: 8079 / 816

Let's proceed to step 6:
The number 816 fits into 8079 9 times, leaving a remainder of 735.
Record the quotient 9 as the next digit in the result. 
Result so far: 879.0
The remainder is 735 after subtracting 7344 from 8079.
Fetch the next digit (6) from the dividend, attach it to 735 and continue: 7356 / 816

Let's proceed to step 7:
7356 divided by 816 is 9 with a remainder of 12.
Put 9 as the next digit of the answer. 
Result so far: 8799.0
If we take 7344 away from 7356, we end up with 12.
Fetch the next digit (3) from the dividend, attach it to 12 and continue: 123 / 816

Moving on to step 8:
If we divide 123 by 816, we get 0 and a remainder of 123.
Put 0 as the next digit of the answer. 
Result so far: 87990.0
Deduct 0 from 123 and we're left with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 9:
816 can be fit into 1230 1 times, resulting in a remainder of 414.
Record the quotient 1 as the next digit in the result. 
Result so far: 87990.1
Subtracting 816 from 1230 leaves us with 414.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4140, and continue the process.

Let's proceed to step 10:
The number 816 fits into 4140 5 times, leaving a remainder of 60.
The number 5 becomes the next digit in our result. 
Result so far: 87990.15
The remainder is 60 after subtracting 4080 from 4140.
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 11:
816 goes into 600 0 times with a remainder of 600.
Use 0 as the next digit of our solution. 
Result so far: 87990.15
If we subtract 0 from 600, we get 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

On to step 12:
If we divide 6000 by 816, we get 7 and a remainder of 288.
Put 7 as the next digit of the answer. 
Result so far: 87990.1507
Deduct 5712 from 6000 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Step 13:
The number 816 fits into 2880 3 times, leaving a remainder of 432.
Record the quotient 3 as the next digit in the result. 
Result so far: 87990.15073
Subtract 2448 from 2880 to get 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Going ahead to step 14:
816 goes into 4320 5 times with a remainder of 240.
Use 5 as the next digit of our solution. 
Result so far: 87990.150735
Deduct 4080 from 4320 and we're left with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 15:
When dividing 2400 by 816, we get 2 with a remainder of 768.
The number 2 becomes the next digit in our result. 
Result so far: 87990.1507352
Subtracting 1632 from 2400 leaves us with 768.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7680, and continue the process.

Going ahead to step 16:
816 goes into 7680 9 times with a remainder of 336.
Put 9 as the next digit of the answer. 
Result so far: 87990.15073529
Subtracting 7344 from 7680 leaves us with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

After the division, we end up with 87990.15073529 and a remainder of 3.36e-07.