We look at the division of 71773554 by 819 
The aim is to understand the frequency of 819 in 71773554.

Let's proceed to step 1:
819 can be fit into 7 0 times, resulting in a remainder of 7.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Fetch the next digit (1) from the dividend, attach it to 7 and continue: 71 / 819

Let's proceed to step 2:
If we divide 71 by 819, we get 0 and a remainder of 71.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 71 to get 71.
Include the next digit (7) from the dividend after 71, then repeat: 717 / 819

Let's proceed to step 3:
When dividing 717 by 819, we get 0 with a remainder of 717.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 717 and we're left with 717.
Take the next digit (7) from the dividend and append it to 717, then repeat: 7177 / 819

Moving on to step 4:
819 goes into 7177 8 times with a remainder of 625.
Use 8 as the next digit of our solution. 
Result so far: 8.0
The remainder is 625 after subtracting 6552 from 7177.
Take the next digit (3) from the dividend and append it to 625, then repeat: 6253 / 819

Going ahead to step 5:
6253 divided by 819 is 7 with a remainder of 520.
Put 7 as the next digit of the answer. 
Result so far: 87.0
Subtract 5733 from 6253 to get 520.
Bring next digit (5) of the dividend behind the 520 and repeat the process: 5205 / 819

Going ahead to step 6:
819 can be fit into 5205 6 times, resulting in a remainder of 291.
Put 6 as the next digit of the answer. 
Result so far: 876.0
If we take 4914 away from 5205, we end up with 291.
Bring next digit (5) of the dividend behind the 291 and repeat the process: 2915 / 819

Let's proceed to step 7:
When dividing 2915 by 819, we get 3 with a remainder of 458.
Put 3 as the next digit of the answer. 
Result so far: 8763.0
If we subtract 2457 from 2915, we get 458.
Append the next digit (4) from the dividend to 458 and continue with: 4584 / 819

Advancing to step 8:
4584 divided by 819 is 5 with a remainder of 489.
Put 5 as the next digit of the answer. 
Result so far: 87635.0
Deduct 4095 from 4584 and we're left with 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

On to step 9:
819 can be fit into 4890 5 times, resulting in a remainder of 795.
The number 5 becomes the next digit in our result. 
Result so far: 87635.5
Subtract 4095 from 4890 to get 795.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7950, and continue the process.

Advancing to step 10:
When dividing 7950 by 819, we get 9 with a remainder of 579.
The number 9 becomes the next digit in our result. 
Result so far: 87635.59
Deduct 7371 from 7950 and we're left with 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

On to step 11:
5790 divided by 819 is 7 with a remainder of 57.
Record the quotient 7 as the next digit in the result. 
Result so far: 87635.597
If we subtract 5733 from 5790, we get 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Let's proceed to step 12:
If we divide 570 by 819, we get 0 and a remainder of 570.
Write down 0 as next digit of the result. 
Result so far: 87635.597
The remainder is 570 after subtracting 0 from 570.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5700, and continue the process.

Let's proceed to step 13:
5700 divided by 819 is 6 with a remainder of 786.
Put 6 as the next digit of the answer. 
Result so far: 87635.59706
Subtract 4914 from 5700 to get 786.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7860, and continue the process.

Moving on to step 14:
819 can be fit into 7860 9 times, resulting in a remainder of 489.
Put 9 as the next digit of the answer. 
Result so far: 87635.597069
Deduct 7371 from 7860 and we're left with 489.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4890, and continue the process.

Going ahead to step 15:
When dividing 4890 by 819, we get 5 with a remainder of 795.
The next digit of our result is 5. 
Result so far: 87635.5970695
Subtracting 4095 from 4890 leaves us with 795.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7950, and continue the process.

Let's proceed to step 16:
819 can be fit into 7950 9 times, resulting in a remainder of 579.
Use 9 as the next digit of our solution. 
Result so far: 87635.59706959
If we take 7371 away from 7950, we end up with 579.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5790, and continue the process.

The final outcome is 87635.59706959, with a leftover of 5.79e-07.