We divide 15877756 by 428
The aim is to understand the frequency of 428 in 15877756.

On to step 1:
428 can be fit into 1 0 times, resulting in a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Take the next digit (5) from the dividend and append it to 1, then repeat: 15 / 428

Moving on to step 2:
If we divide 15 by 428, we get 0 and a remainder of 15.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 15 to get 15.
Take the next digit (8) from the dividend and append it to 15, then repeat: 158 / 428

Step 3:
158 divided by 428 is 0 with a remainder of 158.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we take 0 away from 158, we end up with 158.
Include the next digit (7) from the dividend after 158, then repeat: 1587 / 428

Going ahead to step 4:
428 can be fit into 1587 3 times, resulting in a remainder of 303.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Deduct 1284 from 1587 and we're left with 303.
Bring next digit (7) of the dividend behind the 303 and repeat the process: 3037 / 428

Moving on to step 5:
428 goes into 3037 7 times with a remainder of 41.
The next digit of our result is 7. 
Result so far: 37.0
Subtract 2996 from 3037 to get 41.
Bring next digit (7) of the dividend behind the 41 and repeat the process: 417 / 428

Going ahead to step 6:
417 divided by 428 is 0 with a remainder of 417.
Record the quotient 0 as the next digit in the result. 
Result so far: 370.0
If we take 0 away from 417, we end up with 417.
Append the next digit (5) from the dividend to 417 and continue with: 4175 / 428

Let's proceed to step 7:
428 can be fit into 4175 9 times, resulting in a remainder of 323.
Write down 9 as next digit of the result. 
Result so far: 3709.0
Subtract 3852 from 4175 to get 323.
Append the next digit (6) from the dividend to 323 and continue with: 3236 / 428

Step 8:
When dividing 3236 by 428, we get 7 with a remainder of 240.
Record the quotient 7 as the next digit in the result. 
Result so far: 37097.0
Subtracting 2996 from 3236 leaves us with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Going ahead to step 9:
The number 428 fits into 2400 5 times, leaving a remainder of 260.
The number 5 becomes the next digit in our result. 
Result so far: 37097.5
The remainder is 260 after subtracting 2140 from 2400.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2600, and continue the process.

Step 10:
When dividing 2600 by 428, we get 6 with a remainder of 32.
Write down 6 as next digit of the result. 
Result so far: 37097.56
Subtract 2568 from 2600 to get 32.
Since there are no more digits in the dividend, we add a zero to the remainder making it 320, and continue the process.

Moving on to step 11:
The number 428 fits into 320 0 times, leaving a remainder of 320.
Record the quotient 0 as the next digit in the result. 
Result so far: 37097.56
If we take 0 away from 320, we end up with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 12:
The number 428 fits into 3200 7 times, leaving a remainder of 204.
Put 7 as the next digit of the answer. 
Result so far: 37097.5607
Subtract 2996 from 3200 to get 204.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2040, and continue the process.

Advancing to step 13:
The number 428 fits into 2040 4 times, leaving a remainder of 328.
The next digit of our result is 4. 
Result so far: 37097.56074
Subtract 1712 from 2040 to get 328.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3280, and continue the process.

Moving on to step 14:
428 can be fit into 3280 7 times, resulting in a remainder of 284.
Write down 7 as next digit of the result. 
Result so far: 37097.560747
If we take 2996 away from 3280, we end up with 284.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2840, and continue the process.

Advancing to step 15:
428 goes into 2840 6 times with a remainder of 272.
The number 6 becomes the next digit in our result. 
Result so far: 37097.5607476
Deduct 2568 from 2840 and we're left with 272.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2720, and continue the process.

Let's proceed to step 16:
428 goes into 2720 6 times with a remainder of 152.
Put 6 as the next digit of the answer. 
Result so far: 37097.56074766
If we take 2568 away from 2720, we end up with 152.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1520, and continue the process.

In conclusion, the division gives 37097.56074766 with a balance of 1.52e-07.