We're dividing 36437811 by 451 
The aim is to understand the frequency of 451 in 36437811.

Moving on to step 1:
The number 451 fits into 3 0 times, leaving a remainder of 3.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 3, we get 3.
Fetch the next digit (6) from the dividend, attach it to 3 and continue: 36 / 451

Step 2:
451 can be fit into 36 0 times, resulting in a remainder of 36.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 36 and we're left with 36.
Grab the next digit (4) from the dividend, add it to 36, then carry on: 364 / 451

Step 3:
When dividing 364 by 451, we get 0 with a remainder of 364.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we take 0 away from 364, we end up with 364.
Bring next digit (3) of the dividend behind the 364 and repeat the process: 3643 / 451

Step 4:
451 goes into 3643 8 times with a remainder of 35.
The next digit of our result is 8. 
Result so far: 8.0
Subtracting 3608 from 3643 leaves us with 35.
Include the next digit (7) from the dividend after 35, then repeat: 357 / 451

Moving on to step 5:
The number 451 fits into 357 0 times, leaving a remainder of 357.
Use 0 as the next digit of our solution. 
Result so far: 80.0
The remainder is 357 after subtracting 0 from 357.
Bring next digit (8) of the dividend behind the 357 and repeat the process: 3578 / 451

Advancing to step 6:
451 can be fit into 3578 7 times, resulting in a remainder of 421.
Use 7 as the next digit of our solution. 
Result so far: 807.0
Subtracting 3157 from 3578 leaves us with 421.
Grab the next digit (1) from the dividend, add it to 421, then carry on: 4211 / 451

Advancing to step 7:
If we divide 4211 by 451, we get 9 and a remainder of 152.
The next digit of our result is 9. 
Result so far: 8079.0
If we subtract 4059 from 4211, we get 152.
Include the next digit (1) from the dividend after 152, then repeat: 1521 / 451

Going ahead to step 8:
1521 divided by 451 is 3 with a remainder of 168.
Use 3 as the next digit of our solution. 
Result so far: 80793.0
Subtract 1353 from 1521 to get 168.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1680, and continue the process.

On to step 9:
The number 451 fits into 1680 3 times, leaving a remainder of 327.
Put 3 as the next digit of the answer. 
Result so far: 80793.3
If we take 1353 away from 1680, we end up with 327.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3270, and continue the process.

On to step 10:
If we divide 3270 by 451, we get 7 and a remainder of 113.
Record the quotient 7 as the next digit in the result. 
Result so far: 80793.37
Subtract 3157 from 3270 to get 113.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1130, and continue the process.

Step 11:
When dividing 1130 by 451, we get 2 with a remainder of 228.
Put 2 as the next digit of the answer. 
Result so far: 80793.372
Deduct 902 from 1130 and we're left with 228.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2280, and continue the process.

Going ahead to step 12:
2280 divided by 451 is 5 with a remainder of 25.
The next digit of our result is 5. 
Result so far: 80793.3725
Subtracting 2255 from 2280 leaves us 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.

Let's proceed to step 13:
When dividing 250 by 451, we get 0 with a remainder of 250.
Use 0 as the next digit of our solution. 
Result so far: 80793.3725
Subtract 0 from 250 to get 250.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2500, and continue the process.

Step 14:
When dividing 2500 by 451, we get 5 with a remainder of 245.
Use 5 as the next digit of our solution. 
Result so far: 80793.372505
Subtract 2255 from 2500 to get 245.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2450, and continue the process.

Let's proceed to step 15:
451 goes into 2450 5 times with a remainder of 195.
Write down 5 as next digit of the result. 
Result so far: 80793.3725055
If we subtract 2255 from 2450, we get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

The final outcome is 80793.3725055, with a leftover of 1.95e-06.