We look at the division of 378839 by 73 
The aim is to understand the frequency of 73 in 378839.

Going ahead to step 1:
73 can be fit into 3 0 times, resulting in a remainder of 3.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 3 to get 3.
Fetch the next digit (7) from the dividend, attach it to 3 and continue: 37 / 73

Going ahead to step 2:
73 can be fit into 37 0 times, resulting in a remainder of 37.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 37, we end up with 37.
Include the next digit (8) from the dividend after 37, then repeat: 378 / 73

On to step 3:
73 goes into 378 5 times with a remainder of 13.
Write down 5 as next digit of the result. 
Result so far: 5.0
If we take 365 away from 378, we end up with 13.
Fetch the next digit (8) from the dividend, attach it to 13 and continue: 138 / 73

Moving on to step 4:
73 goes into 138 1 times with a remainder of 65.
The number 1 becomes the next digit in our result. 
Result so far: 51.0
Subtracting 73 from 138 leaves us with 65.
Include the next digit (3) from the dividend after 65, then repeat: 653 / 73

Going ahead to step 5:
653 divided by 73 is 8 with a remainder of 69.
Record the quotient 8 as the next digit in the result. 
Result so far: 518.0
Subtracting 584 from 653 leaves us with 69.
Bring next digit (9) of the dividend behind the 69 and repeat the process: 699 / 73

Moving on to step 6:
If we divide 699 by 73, we get 9 and a remainder of 42.
The number 9 becomes the next digit in our result. 
Result so far: 5189.0
Subtract 657 from 699 to get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 7:
When dividing 420 by 73, we get 5 with a remainder of 55.
Use 5 as the next digit of our solution. 
Result so far: 5189.5
If we subtract 365 from 420, we get 55.
Since there are no more digits in the dividend, we add a zero to the remainder making it 550, and continue the process.

Advancing to step 8:
If we divide 550 by 73, we get 7 and a remainder of 39.
The next digit of our result is 7. 
Result so far: 5189.57
Subtracting 511 from 550 leaves us with 39.
Since there are no more digits in the dividend, we add a zero to the remainder making it 390, and continue the process.

On to step 9:
390 divided by 73 is 5 with a remainder of 25.
Write down 5 as next digit of the result. 
Result so far: 5189.575
Deduct 365 from 390 and we're left with 25.
Since there are no more digits in the dividend, we add a zero to the remainder making it 250, and continue the process.

Moving on to step 10:
When dividing 250 by 73, we get 3 with a remainder of 31.
Put 3 as the next digit of the answer. 
Result so far: 5189.5753
If we take 219 away from 250, we end up with 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

On to step 11:
73 can be fit into 310 4 times, resulting in a remainder of 18.
Put 4 as the next digit of the answer. 
Result so far: 5189.57534
The remainder is 18 after subtracting 292 from 310.
Since there are no more digits in the dividend, we add a zero to the remainder making it 180, and continue the process.

Moving on to step 12:
73 can be fit into 180 2 times, resulting in a remainder of 34.
The number 2 becomes the next digit in our result. 
Result so far: 5189.575342
Deduct 146 from 180 and we're left with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Moving on to step 13:
The number 73 fits into 340 4 times, leaving a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 5189.5753424
If we subtract 292 from 340, we get 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Step 14:
73 can be fit into 480 6 times, resulting in a remainder of 42.
The number 6 becomes the next digit in our result. 
Result so far: 5189.57534246
If we subtract 438 from 480, we get 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

In conclusion, the division gives 5189.57534246 with a balance of 4.2e-08.