We divide 90378 by 89
The aim is to understand the frequency of 89 in 90378.

Let's proceed to step 1:
9 divided by 89 is 0 with a remainder of 9.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Append the next digit (0) from the dividend to 9 and continue with: 90 / 89

On to step 2:
90 divided by 89 is 1 with a remainder of 1.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 89 from 90 leaves us with 1.
Include the next digit (3) from the dividend after 1, then repeat: 13 / 89

Step 3:
13 divided by 89 is 0 with a remainder of 13.
The next digit of our result is 0. 
Result so far: 10.0
Subtract 0 from 13 to get 13.
Grab the next digit (7) from the dividend, add it to 13, then carry on: 137 / 89

Advancing to step 4:
The number 89 fits into 137 1 times, leaving a remainder of 48.
Write down 1 as next digit of the result. 
Result so far: 101.0
The remainder is 48 after subtracting 89 from 137.
Grab the next digit (8) from the dividend, add it to 48, then carry on: 488 / 89

Moving on to step 5:
When dividing 488 by 89, we get 5 with a remainder of 43.
Write down 5 as next digit of the result. 
Result so far: 1015.0
Subtract 445 from 488 to get 43.
Since there are no more digits in the dividend, we add a zero to the remainder making it 430, and continue the process.

Let's proceed to step 6:
If we divide 430 by 89, we get 4 and a remainder of 74.
Use 4 as the next digit of our solution. 
Result so far: 1015.4
If we take 356 away from 430, we end up with 74.
Since there are no more digits in the dividend, we add a zero to the remainder making it 740, and continue the process.

Moving on to step 7:
89 can be fit into 740 8 times, resulting in a remainder of 28.
Put 8 as the next digit of the answer. 
Result so far: 1015.48
Subtracting 712 from 740 leaves us 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.

Advancing to step 8:
280 divided by 89 is 3 with a remainder of 13.
Record the quotient 3 as the next digit in the result. 
Result so far: 1015.483
If we subtract 267 from 280, we get 13.
Since there are no more digits in the dividend, we add a zero to the remainder making it 130, and continue the process.

On to step 9:
The number 89 fits into 130 1 times, leaving a remainder of 41.
Write down 1 as next digit of the result. 
Result so far: 1015.4831
If we subtract 89 from 130, we get 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

On to step 10:
The number 89 fits into 410 4 times, leaving a remainder of 54.
Put 4 as the next digit of the answer. 
Result so far: 1015.48314
The remainder is 54 after subtracting 356 from 410.
Since there are no more digits in the dividend, we add a zero to the remainder making it 540, and continue the process.

Advancing to step 11:
When dividing 540 by 89, we get 6 with a remainder of 6.
Record the quotient 6 as the next digit in the result. 
Result so far: 1015.483146
If we take 534 away from 540, we end up with 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Going ahead to step 12:
The number 89 fits into 60 0 times, leaving a remainder of 60.
Record the quotient 0 as the next digit in the result. 
Result so far: 1015.483146
The remainder is 60 after subtracting 0 from 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Going ahead to step 13:
89 can be fit into 600 6 times, resulting in a remainder of 66.
Write down 6 as next digit of the result. 
Result so far: 1015.48314606
Subtracting 534 from 600 leaves us with 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

The quotient of the division is 1015.48314606, and the remainder is 6.6e-08.