Let's divide 87448139 by 805
The aim is to understand the frequency of 805 in 87448139.

Moving on to step 1:
8 divided by 805 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtracting 0 from 8 leaves us with 8.
Grab the next digit (7) from the dividend, add it to 8, then carry on: 87 / 805

On to step 2:
87 divided by 805 is 0 with a remainder of 87.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 87 to get 87.
Include the next digit (4) from the dividend after 87, then repeat: 874 / 805

Moving on to step 3:
The number 805 fits into 874 1 times, leaving a remainder of 69.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 805 from 874 leaves us with 69.
Fetch the next digit (4) from the dividend, attach it to 69 and continue: 694 / 805

Let's proceed to step 4:
If we divide 694 by 805, we get 0 and a remainder of 694.
Record the quotient 0 as the next digit in the result. 
Result so far: 10.0
Deduct 0 from 694 and we're left with 694.
Grab the next digit (8) from the dividend, add it to 694, then carry on: 6948 / 805

On to step 5:
The number 805 fits into 6948 8 times, leaving a remainder of 508.
Record the quotient 8 as the next digit in the result. 
Result so far: 108.0
Subtract 6440 from 6948 to get 508.
Grab the next digit (1) from the dividend, add it to 508, then carry on: 5081 / 805

Advancing to step 6:
805 goes into 5081 6 times with a remainder of 251.
Put 6 as the next digit of the answer. 
Result so far: 1086.0
If we take 4830 away from 5081, we end up with 251.
Bring next digit (3) of the dividend behind the 251 and repeat the process: 2513 / 805

Advancing to step 7:
805 can be fit into 2513 3 times, resulting in a remainder of 98.
Write down 3 as next digit of the result. 
Result so far: 10863.0
If we subtract 2415 from 2513, we get 98.
Fetch the next digit (9) from the dividend, attach it to 98 and continue: 989 / 805

Step 8:
When dividing 989 by 805, we get 1 with a remainder of 184.
Record the quotient 1 as the next digit in the result. 
Result so far: 108631.0
The remainder is 184 after subtracting 805 from 989.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1840, and continue the process.

On to step 9:
805 can be fit into 1840 2 times, resulting in a remainder of 230.
Write down 2 as next digit of the result. 
Result so far: 108631.2
If we take 1610 away from 1840, we end up with 230.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Moving on to step 10:
If we divide 2300 by 805, we get 2 and a remainder of 690.
Write down 2 as next digit of the result. 
Result so far: 108631.22
Subtracting 1610 from 2300 leaves us with 690.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6900, and continue the process.

After the division, we end up with 108631.22 and a remainder of 0.69.