3884219 ÷ 819 
The aim is to understand the frequency of 819 in 3884219.

Let's proceed to step 1:
If we divide 3 by 819, we get 0 and a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 819

Step 2:
38 divided by 819 is 0 with a remainder of 38.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 38 leaves us with 38.
Fetch the next digit (8) from the dividend, attach it to 38 and continue: 388 / 819

Step 3:
388 divided by 819 is 0 with a remainder of 388.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtracting 0 from 388 leaves us with 388.
Take the next digit (4) from the dividend and append it to 388, then repeat: 3884 / 819

Step 4:
819 can be fit into 3884 4 times, resulting in a remainder of 608.
The next digit of our result is 4. 
Result so far: 4.0
Subtracting 3276 from 3884 leaves us with 608.
Include the next digit (2) from the dividend after 608, then repeat: 6082 / 819

Step 5:
6082 divided by 819 is 7 with a remainder of 349.
Use 7 as the next digit of our solution. 
Result so far: 47.0
Deduct 5733 from 6082 and we're left with 349.
Append the next digit (1) from the dividend to 349 and continue with: 3491 / 819

Moving on to step 6:
819 can be fit into 3491 4 times, resulting in a remainder of 215.
Use 4 as the next digit of our solution. 
Result so far: 474.0
If we subtract 3276 from 3491, we get 215.
Append the next digit (9) from the dividend to 215 and continue with: 2159 / 819

Moving on to step 7:
When dividing 2159 by 819, we get 2 with a remainder of 521.
The next digit of our result is 2. 
Result so far: 4742.0
Subtract 1638 from 2159 to get 521.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5210, and continue the process.

Going ahead to step 8:
If we divide 5210 by 819, we get 6 and a remainder of 296.
The next digit of our result is 6. 
Result so far: 4742.6
If we take 4914 away from 5210, we end up with 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Step 9:
The number 819 fits into 2960 3 times, leaving a remainder of 503.
The number 3 becomes the next digit in our result. 
Result so far: 4742.63
Subtracting 2457 from 2960 leaves us with 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

Let's proceed to step 10:
5030 divided by 819 is 6 with a remainder of 116.
Record the quotient 6 as the next digit in the result. 
Result so far: 4742.636
Subtract 4914 from 5030 to get 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

On to step 11:
819 can be fit into 1160 1 times, resulting in a remainder of 341.
Use 1 as the next digit of our solution. 
Result so far: 4742.6361
Deduct 819 from 1160 and we're left with 341.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Let's proceed to step 12:
819 goes into 3410 4 times with a remainder of 134.
The next digit of our result is 4. 
Result so far: 4742.63614
If we take 3276 away from 3410, we end up with 134.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1340, and continue the process.

Moving on to step 13:
819 can be fit into 1340 1 times, resulting in a remainder of 521.
The number 1 becomes the next digit in our result. 
Result so far: 4742.636141
If we subtract 819 from 1340, we get 521.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5210, and continue the process.

Let's proceed to step 14:
The number 819 fits into 5210 6 times, leaving a remainder of 296.
Record the quotient 6 as the next digit in the result. 
Result so far: 4742.6361416
The remainder is 296 after subtracting 4914 from 5210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Moving on to step 15:
819 can be fit into 2960 3 times, resulting in a remainder of 503.
The next digit of our result is 3. 
Result so far: 4742.63614163
Subtracting 2457 from 2960 leaves us with 503.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5030, and continue the process.

The quotient of the division is 4742.63614163, and the remainder is 5.03e-07.