387459 ÷ 89 
We're looking to find how many times 89 goes into 387459.

On to step 1:
The number 89 fits into 3 0 times, leaving a remainder of 3.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we take 0 away from 3, we end up with 3.
Append the next digit (8) from the dividend to 3 and continue with: 38 / 89

Step 2:
89 can be fit into 38 0 times, resulting in a remainder of 38.
The next digit of our result is 0. 
Result so far: 0.0
If we subtract 0 from 38, we get 38.
Fetch the next digit (7) from the dividend, attach it to 38 and continue: 387 / 89

Step 3:
If we divide 387 by 89, we get 4 and a remainder of 31.
Write down 4 as next digit of the result. 
Result so far: 4.0
If we subtract 356 from 387, we get 31.
Append the next digit (4) from the dividend to 31 and continue with: 314 / 89

On to step 4:
314 divided by 89 is 3 with a remainder of 47.
The next digit of our result is 3. 
Result so far: 43.0
Deduct 267 from 314 and we're left with 47.
Grab the next digit (5) from the dividend, add it to 47, then carry on: 475 / 89

Going ahead to step 5:
475 divided by 89 is 5 with a remainder of 30.
The next digit of our result is 5. 
Result so far: 435.0
If we subtract 445 from 475, we get 30.
Include the next digit (9) from the dividend after 30, then repeat: 309 / 89

Step 6:
If we divide 309 by 89, we get 3 and a remainder of 42.
Put 3 as the next digit of the answer. 
Result so far: 4353.0
Deduct 267 from 309 and we're left with 42.
Since there are no more digits in the dividend, we add a zero to the remainder making it 420, and continue the process.

On to step 7:
89 can be fit into 420 4 times, resulting in a remainder of 64.
Put 4 as the next digit of the answer. 
Result so far: 4353.4
The remainder is 64 after subtracting 356 from 420.
Since there are no more digits in the dividend, we add a zero to the remainder making it 640, and continue the process.

Moving on to step 8:
89 can be fit into 640 7 times, resulting in a remainder of 17.
Put 7 as the next digit of the answer. 
Result so far: 4353.47
Deduct 623 from 640 and we're left with 17.
Since there are no more digits in the dividend, we add a zero to the remainder making it 170, and continue the process.

Let's proceed to step 9:
89 goes into 170 1 times with a remainder of 81.
Put 1 as the next digit of the answer. 
Result so far: 4353.471
If we subtract 89 from 170, we get 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Advancing to step 10:
The number 89 fits into 810 9 times, leaving a remainder of 9.
The number 9 becomes the next digit in our result. 
Result so far: 4353.4719
The remainder is 9 after subtracting 801 from 810.
Since there are no more digits in the dividend, we add a zero to the remainder making it 90, and continue the process.

On to step 11:
If we divide 90 by 89, we get 1 and a remainder of 1.
Write down 1 as next digit of the result. 
Result so far: 4353.47191
Subtract 89 from 90 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 12:
When dividing 10 by 89, we get 0 with a remainder of 10.
Record the quotient 0 as the next digit in the result. 
Result so far: 4353.47191
If we take 0 away from 10, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Going ahead to step 13:
If we divide 100 by 89, we get 1 and a remainder of 11.
The next digit of our result is 1. 
Result so far: 4353.4719101
The remainder is 11 after subtracting 89 from 100.
Since there are no more digits in the dividend, we add a zero to the remainder making it 110, and continue the process.

Step 14:
When dividing 110 by 89, we get 1 with a remainder of 21.
Record the quotient 1 as the next digit in the result. 
Result so far: 4353.47191011
If we subtract 89 from 110, we get 21.
Since there are no more digits in the dividend, we add a zero to the remainder making it 210, and continue the process.

The final result is 4353.47191011 with a remainder of 2.1e-08.