12145 ÷ 89 
We want to divide 12145 by 89.

Advancing to step 1:
89 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 1 after subtracting 0 from 1.
Take the next digit (2) from the dividend and append it to 1, then repeat: 12 / 89

Step 2:
The number 89 fits into 12 0 times, leaving a remainder of 12.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 12 and we're left with 12.
Take the next digit (1) from the dividend and append it to 12, then repeat: 121 / 89

Advancing to step 3:
The number 89 fits into 121 1 times, leaving a remainder of 32.
The next digit of our result is 1. 
Result so far: 1.0
The remainder is 32 after subtracting 89 from 121.
Include the next digit (4) from the dividend after 32, then repeat: 324 / 89

Step 4:
When dividing 324 by 89, we get 3 with a remainder of 57.
Write down 3 as next digit of the result. 
Result so far: 13.0
Subtracting 267 from 324 leaves us with 57.
Fetch the next digit (5) from the dividend, attach it to 57 and continue: 575 / 89

Advancing to step 5:
When dividing 575 by 89, we get 6 with a remainder of 41.
Use 6 as the next digit of our solution. 
Result so far: 136.0
Subtract 534 from 575 to 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.

Let's proceed to step 6:
The number 89 fits into 410 4 times, leaving a remainder of 54.
Use 4 as the next digit of our solution. 
Result so far: 136.4
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.

Let's proceed to step 7:
89 can be fit into 540 6 times, resulting in a remainder of 6.
The next digit of our result is 6. 
Result so far: 136.46
Subtracting 534 from 540 leaves us 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.

On to step 8:
89 goes into 60 0 times with a remainder of 60.
The number 0 becomes the next digit in our result. 
Result so far: 136.46
Subtracting 0 from 60 leaves us with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Step 9:
If we divide 600 by 89, we get 6 and a remainder of 66.
Record the quotient 6 as the next digit in the result. 
Result so far: 136.4606
Deduct 534 from 600 and we're left 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.

Advancing to step 10:
89 can be fit into 660 7 times, resulting in a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 136.46067
If we take 623 away from 660, we end up with 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Step 11:
89 can be fit into 370 4 times, resulting in a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 136.460674
If we take 356 away from 370, we end up with 14.
Since there are no more digits in the dividend, we add a zero to the remainder making it 140, and continue the process.

Advancing to step 12:
The number 89 fits into 140 1 times, leaving a remainder of 51.
The next digit of our result is 1. 
Result so far: 136.4606741
If we take 89 away from 140, we end up with 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Step 13:
The number 89 fits into 510 5 times, leaving a remainder of 65.
Write down 5 as next digit of the result. 
Result so far: 136.46067415
The remainder is 65 after subtracting 445 from 510.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

After the division, we end up with 136.46067415 and a remainder of 6.5e-08.