We look at the division of 799173 by 53 
The aim is to understand the frequency of 53 in 799173.

On to step 1:
The number 53 fits into 7 0 times, leaving a remainder of 7.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 7, we end up with 7.
Take the next digit (9) from the dividend and append it to 7, then repeat: 79 / 53

Let's proceed to step 2:
79 divided by 53 is 1 with a remainder of 26.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we take 53 away from 79, we end up with 26.
Append the next digit (9) from the dividend to 26 and continue with: 269 / 53

Moving on to step 3:
When dividing 269 by 53, we get 5 with a remainder of 4.
Use 5 as the next digit of our solution. 
Result so far: 15.0
Deduct 265 from 269 and we're left with 4.
Take the next digit (1) from the dividend and append it to 4, then repeat: 41 / 53

Advancing to step 4:
53 goes into 41 0 times with a remainder of 41.
Record the quotient 0 as the next digit in the result. 
Result so far: 150.0
The remainder is 41 after subtracting 0 from 41.
Append the next digit (7) from the dividend to 41 and continue with: 417 / 53

On to step 5:
The number 53 fits into 417 7 times, leaving a remainder of 46.
Record the quotient 7 as the next digit in the result. 
Result so far: 1507.0
If we subtract 371 from 417, we get 46.
Append the next digit (3) from the dividend to 46 and continue with: 463 / 53

Let's proceed to step 6:
When dividing 463 by 53, we get 8 with a remainder of 39.
Use 8 as the next digit of our solution. 
Result so far: 15078.0
If we subtract 424 from 463, we get 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 7:
When dividing 390 by 53, we get 7 with a remainder of 19.
Record the quotient 7 as the next digit in the result. 
Result so far: 15078.7
Subtract 371 from 390 to get 19.
Since there are no more digits in the dividend, we add a zero to the remainder making it 190, and continue the process.

Step 8:
When dividing 190 by 53, we get 3 with a remainder of 31.
Record the quotient 3 as the next digit in the result. 
Result so far: 15078.73
If we subtract 159 from 190, we get 31.
Since there are no more digits in the dividend, we add a zero to the remainder making it 310, and continue the process.

Step 9:
The number 53 fits into 310 5 times, leaving a remainder of 45.
Put 5 as the next digit of the answer. 
Result so far: 15078.735
Deduct 265 from 310 and we're left with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Let's proceed to step 10:
If we divide 450 by 53, we get 8 and a remainder of 26.
Put 8 as the next digit of the answer. 
Result so far: 15078.7358
Deduct 424 from 450 and we're left with 26.
Since there are no more digits in the dividend, we add a zero to the remainder making it 260, and continue the process.

Advancing to step 11:
53 can be fit into 260 4 times, resulting in a remainder of 48.
Write down 4 as next digit of the result. 
Result so far: 15078.73584
If we take 212 away from 260, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 12:
If we divide 480 by 53, we get 9 and a remainder of 3.
Write down 9 as next digit of the result. 
Result so far: 15078.735849
If we take 477 away from 480, we end up with 3.
Since there are no more digits in the dividend, we add a zero to the remainder making it 30, and continue the process.

On to step 13:
53 can be fit into 30 0 times, resulting in a remainder of 30.
The next digit of our result is 0. 
Result so far: 15078.735849
Subtract 0 from 30 to get 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Step 14:
If we divide 300 by 53, we get 5 and a remainder of 35.
Record the quotient 5 as the next digit in the result. 
Result so far: 15078.73584905
If we subtract 265 from 300, we get 35.
Since there are no more digits in the dividend, we add a zero to the remainder making it 350, and continue the process.

After the division, we end up with 15078.73584905 and a remainder of 3.5e-08.