We're dividing 422007 by 87 
The aim is to understand the frequency of 87 in 422007.

Advancing to step 1:
When dividing 4 by 87, we get 0 with a remainder of 4.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 4, we get 4.
Include the next digit (2) from the dividend after 4, then repeat: 42 / 87

Advancing to step 2:
87 goes into 42 0 times with a remainder of 42.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 42 leaves us with 42.
Bring next digit (2) of the dividend behind the 42 and repeat the process: 422 / 87

Advancing to step 3:
If we divide 422 by 87, we get 4 and a remainder of 74.
Use 4 as the next digit of our solution. 
Result so far: 4.0
Subtracting 348 from 422 leaves us with 74.
Include the next digit (0) from the dividend after 74, then repeat: 740 / 87

Going ahead to step 4:
When dividing 740 by 87, we get 8 with a remainder of 44.
Record the quotient 8 as the next digit in the result. 
Result so far: 48.0
If we subtract 696 from 740, we get 44.
Include the next digit (0) from the dividend after 44, then repeat: 440 / 87

Going ahead to step 5:
87 can be fit into 440 5 times, resulting in a remainder of 5.
The next digit of our result is 5. 
Result so far: 485.0
The remainder is 5 after subtracting 435 from 440.
Include the next digit (7) from the dividend after 5, then repeat: 57 / 87

Let's proceed to step 6:
When dividing 57 by 87, we get 0 with a remainder of 57.
Use 0 as the next digit of our solution. 
Result so far: 4850.0
If we take 0 away from 57, we end up with 57.
Since there are no more digits in the dividend, we add a zero to the remainder making it 570, and continue the process.

Moving on to step 7:
If we divide 570 by 87, we get 6 and a remainder of 48.
Record the quotient 6 as the next digit in the result. 
Result so far: 4850.6
Deduct 522 from 570 and we're left with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Advancing to step 8:
87 can be fit into 480 5 times, resulting in a remainder of 45.
The next digit of our result is 5. 
Result so far: 4850.65
Subtracting 435 from 480 leaves us with 45.
Since there are no more digits in the dividend, we add a zero to the remainder making it 450, and continue the process.

Going ahead to step 9:
87 can be fit into 450 5 times, resulting in a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 4850.655
Subtract 435 from 450 to get 15.
Since there are no more digits in the dividend, we add a zero to the remainder making it 150, and continue the process.

The quotient of the division is 4850.655, and the remainder is 0.0015.