89039213 ÷ 451 
The aim is to understand the frequency of 451 in 89039213.

On to step 1:
8 divided by 451 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Fetch the next digit (9) from the dividend, attach it to 8 and continue: 89 / 451

Step 2:
When dividing 89 by 451, we get 0 with a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 89 to get 89.
Grab the next digit (0) from the dividend, add it to 89, then carry on: 890 / 451

On to step 3:
890 divided by 451 is 1 with a remainder of 439.
Use 1 as the next digit of our solution. 
Result so far: 1.0
If we take 451 away from 890, we end up with 439.
Include the next digit (3) from the dividend after 439, then repeat: 4393 / 451

On to step 4:
If we divide 4393 by 451, we get 9 and a remainder of 334.
The next digit of our result is 9. 
Result so far: 19.0
If we subtract 4059 from 4393, we get 334.
Fetch the next digit (9) from the dividend, attach it to 334 and continue: 3349 / 451

Moving on to step 5:
451 goes into 3349 7 times with a remainder of 192.
The number 7 becomes the next digit in our result. 
Result so far: 197.0
If we subtract 3157 from 3349, we get 192.
Bring next digit (2) of the dividend behind the 192 and repeat the process: 1922 / 451

Advancing to step 6:
451 can be fit into 1922 4 times, resulting in a remainder of 118.
Write down 4 as next digit of the result. 
Result so far: 1974.0
Subtract 1804 from 1922 to get 118.
Fetch the next digit (1) from the dividend, attach it to 118 and continue: 1181 / 451

On to step 7:
451 goes into 1181 2 times with a remainder of 279.
The next digit of our result is 2. 
Result so far: 19742.0
If we take 902 away from 1181, we end up with 279.
Bring next digit (3) of the dividend behind the 279 and repeat the process: 2793 / 451

Going ahead to step 8:
The number 451 fits into 2793 6 times, leaving a remainder of 87.
Record the quotient 6 as the next digit in the result. 
Result so far: 197426.0
If we take 2706 away from 2793, we end up with 87.
Since there are no more digits in the dividend, we add a zero to the remainder making it 870, and continue the process.

Moving on to step 9:
If we divide 870 by 451, we get 1 and a remainder of 419.
Use 1 as the next digit of our solution. 
Result so far: 197426.1
If we take 451 away from 870, we end up with 419.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4190, and continue the process.

Let's proceed to step 10:
451 goes into 4190 9 times with a remainder of 131.
Use 9 as the next digit of our solution. 
Result so far: 197426.19
Subtracting 4059 from 4190 leaves us with 131.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1310, and continue the process.

On to step 11:
451 goes into 1310 2 times with a remainder of 408.
Put 2 as the next digit of the answer. 
Result so far: 197426.192
If we subtract 902 from 1310, we get 408.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4080, and continue the process.

Let's proceed to step 12:
451 goes into 4080 9 times with a remainder of 21.
Put 9 as the next digit of the answer. 
Result so far: 197426.1929
The remainder is 21 after subtracting 4059 from 4080.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

On to step 13:
451 can be fit into 210 0 times, resulting in a remainder of 210.
The next digit of our result is 0. 
Result so far: 197426.1929
The remainder is 210 after subtracting 0 from 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Advancing to step 14:
If we divide 2100 by 451, we get 4 and a remainder of 296.
Write down 4 as next digit of the result. 
Result so far: 197426.192904
Subtract 1804 from 2100 to get 296.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2960, and continue the process.

Advancing to step 15:
2960 divided by 451 is 6 with a remainder of 254.
Use 6 as the next digit of our solution. 
Result so far: 197426.1929046
If we subtract 2706 from 2960, we get 254.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2540, and continue the process.

Let's proceed to step 16:
If we divide 2540 by 451, we get 5 and a remainder of 285.
Write down 5 as next digit of the result. 
Result so far: 197426.19290465
Subtract 2255 from 2540 to get 285.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2850, and continue the process.

The final result is 197426.19290465 with a remainder of 2.85e-07.