Let's divide 86737859 by 428
The aim is to understand the frequency of 428 in 86737859.

Moving on to step 1:
If we divide 8 by 428, we get 0 and a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Bring next digit (6) of the dividend behind the 8 and repeat the process: 86 / 428

On to step 2:
When dividing 86 by 428, we get 0 with a remainder of 86.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 86 to get 86.
Bring next digit (7) of the dividend behind the 86 and repeat the process: 867 / 428

Advancing to step 3:
428 goes into 867 2 times with a remainder of 11.
Record the quotient 2 as the next digit in the result. 
Result so far: 2.0
Subtract 856 from 867 to get 11.
Include the next digit (3) from the dividend after 11, then repeat: 113 / 428

Advancing to step 4:
When dividing 113 by 428, we get 0 with a remainder of 113.
The next digit of our result is 0. 
Result so far: 20.0
If we take 0 away from 113, we end up with 113.
Append the next digit (7) from the dividend to 113 and continue with: 1137 / 428

Advancing to step 5:
When dividing 1137 by 428, we get 2 with a remainder of 281.
Use 2 as the next digit of our solution. 
Result so far: 202.0
Subtracting 856 from 1137 leaves us with 281.
Grab the next digit (8) from the dividend, add it to 281, then carry on: 2818 / 428

Let's proceed to step 6:
428 can be fit into 2818 6 times, resulting in a remainder of 250.
The number 6 becomes the next digit in our result. 
Result so far: 2026.0
If we take 2568 away from 2818, we end up with 250.
Fetch the next digit (5) from the dividend, attach it to 250 and continue: 2505 / 428

On to step 7:
When dividing 2505 by 428, we get 5 with a remainder of 365.
Record the quotient 5 as the next digit in the result. 
Result so far: 20265.0
The remainder is 365 after subtracting 2140 from 2505.
Bring next digit (9) of the dividend behind the 365 and repeat the process: 3659 / 428

Step 8:
When dividing 3659 by 428, we get 8 with a remainder of 235.
Use 8 as the next digit of our solution. 
Result so far: 202658.0
If we take 3424 away from 3659, we end up with 235.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2350, and continue the process.

Step 9:
When dividing 2350 by 428, we get 5 with a remainder of 210.
Use 5 as the next digit of our solution. 
Result so far: 202658.5
If we subtract 2140 from 2350, we get 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Step 10:
2100 divided by 428 is 4 with a remainder of 388.
Record the quotient 4 as the next digit in the result. 
Result so far: 202658.54
The remainder is 388 after subtracting 1712 from 2100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Step 11:
428 can be fit into 3880 9 times, resulting in a remainder of 28.
Write down 9 as next digit of the result. 
Result so far: 202658.549
Deduct 3852 from 3880 and we're left with 28.
Since there are no more digits in the dividend, we add a zero to the remainder making it 280, and continue the process.

Let's proceed to step 12:
The number 428 fits into 280 0 times, leaving a remainder of 280.
Write down 0 as next digit of the result. 
Result so far: 202658.549
The remainder is 280 after subtracting 0 from 280.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2800, and continue the process.

Advancing to step 13:
428 goes into 2800 6 times with a remainder of 232.
The number 6 becomes the next digit in our result. 
Result so far: 202658.54906
Subtracting 2568 from 2800 leaves us with 232.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2320, and continue the process.

Going ahead to step 14:
428 can be fit into 2320 5 times, resulting in a remainder of 180.
Use 5 as the next digit of our solution. 
Result so far: 202658.549065
The remainder is 180 after subtracting 2140 from 2320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1800, and continue the process.

Advancing to step 15:
The number 428 fits into 1800 4 times, leaving a remainder of 88.
The next digit of our result is 4. 
Result so far: 202658.5490654
If we subtract 1712 from 1800, we get 88.
Since there are no more digits in the dividend, we add a zero to the remainder making it 880, and continue the process.

Moving on to step 16:
428 goes into 880 2 times with a remainder of 24.
The next digit of our result is 2. 
Result so far: 202658.54906542
Subtract 856 from 880 to get 24.
Since there are no more digits in the dividend, we add a zero to the remainder making it 240, and continue the process.

The quotient of the division is 202658.54906542, and the remainder is 2.4e-08.