We look at the division of 788402 by 73 
The aim is to understand the frequency of 73 in 788402.

Let's proceed to step 1:
When dividing 7 by 73, we get 0 with a remainder of 7.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtracting 0 from 7 leaves us with 7.
Take the next digit (8) from the dividend and append it to 7, then repeat: 78 / 73

Advancing to step 2:
73 can be fit into 78 1 times, resulting in a remainder of 5.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 5 after subtracting 73 from 78.
Grab the next digit (8) from the dividend, add it to 5, then carry on: 58 / 73

Advancing to step 3:
When dividing 58 by 73, we get 0 with a remainder of 58.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 58 to get 58.
Bring next digit (4) of the dividend behind the 58 and repeat the process: 584 / 73

Going ahead to step 4:
When dividing 584 by 73, we get 8 with a remainder of 0.
The number 8 becomes the next digit in our result. 
Result so far: 108.0
If we take 584 away from 584, we end up with 0.
Bring next digit (0) of the dividend behind the 0 and repeat the process: 0 / 73

Going ahead to step 5:
73 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 1080.0
Subtracting 0 from 0 leaves us with 0.
Grab the next digit (2) from the dividend, add it to 0, then carry on: 2 / 73

Step 6:
The number 73 fits into 2 0 times, leaving a remainder of 2.
Write down 0 as next digit of the result. 
Result so far: 10800.0
If we subtract 0 from 2, we get 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

Advancing to step 7:
If we divide 20 by 73, we get 0 and a remainder of 20.
Record the quotient 0 as the next digit in the result. 
Result so far: 10800.0
If we take 0 away from 20, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

Moving on to step 8:
When dividing 200 by 73, we get 2 with a remainder of 54.
Write down 2 as next digit of the result. 
Result so far: 10800.02
If we take 146 away from 200, we end up with 54.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Going ahead to step 9:
540 divided by 73 is 7 with a remainder of 29.
Put 7 as the next digit of the answer. 
Result so far: 10800.027
If we take 511 away from 540, we end up with 29.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 10:
290 divided by 73 is 3 with a remainder of 71.
Put 3 as the next digit of the answer. 
Result so far: 10800.0273
Deduct 219 from 290 and we're left with 71.
Since there are no more digits in the dividend, we add a zero to the remainder making it 710, and continue the process.

Let's proceed to step 11:
710 divided by 73 is 9 with a remainder of 53.
Put 9 as the next digit of the answer. 
Result so far: 10800.02739
If we subtract 657 from 710, we get 53.
Since there are no more digits in the dividend, we add a zero to the remainder making it 530, and continue the process.

Step 12:
If we divide 530 by 73, we get 7 and a remainder of 19.
The next digit of our result is 7. 
Result so far: 10800.027397
Deduct 511 from 530 and we're left with 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Going ahead to step 13:
If we divide 190 by 73, we get 2 and a remainder of 44.
Put 2 as the next digit of the answer. 
Result so far: 10800.0273972
Deduct 146 from 190 and we're left with 44.
Since there are no more digits in the dividend, we add a zero to the remainder making it 440, and continue the process.

Going ahead to step 14:
If we divide 440 by 73, we get 6 and a remainder of 2.
The next digit of our result is 6. 
Result so far: 10800.02739726
If we take 438 away from 440, we end up with 2.
Since there are no more digits in the dividend, we add a zero to the remainder making it 20, and continue the process.

The final result is 10800.02739726 with a remainder of 2e-09.