We're dividing 15813651 by 442 
The aim is to understand the frequency of 442 in 15813651.

On to step 1:
If we divide 1 by 442, we get 0 and a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 1 leaves us with 1.
Grab the next digit (5) from the dividend, add it to 1, then carry on: 15 / 442

Moving on to step 2:
If we divide 15 by 442, we get 0 and a remainder of 15.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 442

Step 3:
When dividing 158 by 442, we get 0 with a remainder of 158.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 158 after subtracting 0 from 158.
Bring next digit (1) of the dividend behind the 158 and repeat the process: 1581 / 442

Let's proceed to step 4:
442 can be fit into 1581 3 times, resulting in a remainder of 255.
Record the quotient 3 as the next digit in the result. 
Result so far: 3.0
Subtract 1326 from 1581 to get 255.
Include the next digit (3) from the dividend after 255, then repeat: 2553 / 442

Going ahead to step 5:
2553 divided by 442 is 5 with a remainder of 343.
Put 5 as the next digit of the answer. 
Result so far: 35.0
Subtracting 2210 from 2553 leaves us with 343.
Bring next digit (6) of the dividend behind the 343 and repeat the process: 3436 / 442

On to step 6:
When dividing 3436 by 442, we get 7 with a remainder of 342.
Put 7 as the next digit of the answer. 
Result so far: 357.0
If we subtract 3094 from 3436, we get 342.
Grab the next digit (5) from the dividend, add it to 342, then carry on: 3425 / 442

Let's proceed to step 7:
442 goes into 3425 7 times with a remainder of 331.
Write down 7 as next digit of the result. 
Result so far: 3577.0
If we take 3094 away from 3425, we end up with 331.
Bring next digit (1) of the dividend behind the 331 and repeat the process: 3311 / 442

Let's proceed to step 8:
The number 442 fits into 3311 7 times, leaving a remainder of 217.
Write down 7 as next digit of the result. 
Result so far: 35777.0
The remainder is 217 after subtracting 3094 from 3311.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2170, and continue the process.

Moving on to step 9:
If we divide 2170 by 442, we get 4 and a remainder of 402.
Put 4 as the next digit of the answer. 
Result so far: 35777.4
If we subtract 1768 from 2170, we get 402.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4020, and continue the process.

Going ahead to step 10:
442 can be fit into 4020 9 times, resulting in a remainder of 42.
The number 9 becomes the next digit in our result. 
Result so far: 35777.49
The remainder is 42 after subtracting 3978 from 4020.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

Moving on to step 11:
442 goes into 420 0 times with a remainder of 420.
Put 0 as the next digit of the answer. 
Result so far: 35777.49
Deduct 0 from 420 and we're left with 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4200, and continue the process.

Advancing to step 12:
The number 442 fits into 4200 9 times, leaving a remainder of 222.
Write down 9 as next digit of the result. 
Result so far: 35777.4909
Subtract 3978 from 4200 to get 222.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2220, and continue the process.

Step 13:
442 can be fit into 2220 5 times, resulting in a remainder of 10.
Write down 5 as next digit of the result. 
Result so far: 35777.49095
Subtract 2210 from 2220 to get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 14:
If we divide 100 by 442, we get 0 and a remainder of 100.
The number 0 becomes the next digit in our result. 
Result so far: 35777.49095
Subtract 0 from 100 to get 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1000, and continue the process.

Let's proceed to step 15:
The number 442 fits into 1000 2 times, leaving a remainder of 116.
Use 2 as the next digit of our solution. 
Result so far: 35777.4909502
Deduct 884 from 1000 and we're left with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

Moving on to step 16:
1160 divided by 442 is 2 with a remainder of 276.
Record the quotient 2 as the next digit in the result. 
Result so far: 35777.49095022
If we take 884 away from 1160, we end up with 276.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2760, and continue the process.

After the division, we end up with 35777.49095022 and a remainder of 2.76e-07.