53453594 ÷ 453 
The aim is to understand the frequency of 453 in 53453594.

Advancing to step 1:
If we divide 5 by 453, we get 0 and a remainder of 5.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 5 after subtracting 0 from 5.
Bring next digit (3) of the dividend behind the 5 and repeat the process: 53 / 453

On to step 2:
453 goes into 53 0 times with a remainder of 53.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 53 and we're left with 53.
Bring next digit (4) of the dividend behind the 53 and repeat the process: 534 / 453

Step 3:
453 can be fit into 534 1 times, resulting in a remainder of 81.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 453 away from 534, we end up with 81.
Include the next digit (5) from the dividend after 81, then repeat: 815 / 453

Let's proceed to step 4:
When dividing 815 by 453, we get 1 with a remainder of 362.
Record the quotient 1 as the next digit in the result. 
Result so far: 11.0
Subtracting 453 from 815 leaves us with 362.
Grab the next digit (3) from the dividend, add it to 362, then carry on: 3623 / 453

On to step 5:
The number 453 fits into 3623 7 times, leaving a remainder of 452.
Record the quotient 7 as the next digit in the result. 
Result so far: 117.0
The remainder is 452 after subtracting 3171 from 3623.
Append the next digit (5) from the dividend to 452 and continue with: 4525 / 453

Let's proceed to step 6:
4525 divided by 453 is 9 with a remainder of 448.
The number 9 becomes the next digit in our result. 
Result so far: 1179.0
Subtract 4077 from 4525 to get 448.
Grab the next digit (9) from the dividend, add it to 448, then carry on: 4489 / 453

Going ahead to step 7:
4489 divided by 453 is 9 with a remainder of 412.
Put 9 as the next digit of the answer. 
Result so far: 11799.0
The remainder is 412 after subtracting 4077 from 4489.
Include the next digit (4) from the dividend after 412, then repeat: 4124 / 453

Moving on to step 8:
453 can be fit into 4124 9 times, resulting in a remainder of 47.
The number 9 becomes the next digit in our result. 
Result so far: 117999.0
If we subtract 4077 from 4124, we get 47.
Since there are no more digits in the dividend, we add a zero to the remainder making it 470, and continue the process.

Moving on to step 9:
The number 453 fits into 470 1 times, leaving a remainder of 17.
The next digit of our result is 1. 
Result so far: 117999.1
Subtracting 453 from 470 leaves us with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Going ahead to step 10:
453 can be fit into 170 0 times, resulting in a remainder of 170.
The number 0 becomes the next digit in our result. 
Result so far: 117999.1
Subtracting 0 from 170 leaves us with 170.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1700, and continue the process.

Going ahead to step 11:
453 can be fit into 1700 3 times, resulting in a remainder of 341.
The next digit of our result is 3. 
Result so far: 117999.103
The remainder is 341 after subtracting 1359 from 1700.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3410, and continue the process.

Advancing to step 12:
3410 divided by 453 is 7 with a remainder of 239.
The next digit of our result is 7. 
Result so far: 117999.1037
Deduct 3171 from 3410 and we're left with 239.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2390, and continue the process.

Step 13:
The number 453 fits into 2390 5 times, leaving a remainder of 125.
Record the quotient 5 as the next digit in the result. 
Result so far: 117999.10375
Subtracting 2265 from 2390 leaves us with 125.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1250, and continue the process.

Moving on to step 14:
453 goes into 1250 2 times with a remainder of 344.
Record the quotient 2 as the next digit in the result. 
Result so far: 117999.103752
Deduct 906 from 1250 and we're left with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

On to step 15:
The number 453 fits into 3440 7 times, leaving a remainder of 269.
The next digit of our result is 7. 
Result so far: 117999.1037527
If we take 3171 away from 3440, we end up with 269.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2690, and continue the process.

Advancing to step 16:
453 can be fit into 2690 5 times, resulting in a remainder of 425.
Put 5 as the next digit of the answer. 
Result so far: 117999.10375275
Subtracting 2265 from 2690 leaves us with 425.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4250, and continue the process.

The final result is 117999.10375275 with a remainder of 4.25e-07.