We look at the division of 89210664 by 231 
Let's see how many times 231 fits into 89210664.

Advancing to step 1:
231 goes into 8 0 times with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Bring next digit (9) of the dividend behind the 8 and repeat the process: 89 / 231

Moving on to step 2:
If we divide 89 by 231, we get 0 and a remainder of 89.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 89, we get 89.
Fetch the next digit (2) from the dividend, attach it to 89 and continue: 892 / 231

Let's proceed to step 3:
892 divided by 231 is 3 with a remainder of 199.
Use 3 as the next digit of our solution. 
Result so far: 3.0
Subtracting 693 from 892 leaves us with 199.
Grab the next digit (1) from the dividend, add it to 199, then carry on: 1991 / 231

Let's proceed to step 4:
If we divide 1991 by 231, we get 8 and a remainder of 143.
Write down 8 as next digit of the result. 
Result so far: 38.0
Deduct 1848 from 1991 and we're left with 143.
Grab the next digit (0) from the dividend, add it to 143, then carry on: 1430 / 231

Advancing to step 5:
231 goes into 1430 6 times with a remainder of 44.
Write down 6 as next digit of the result. 
Result so far: 386.0
The remainder is 44 after subtracting 1386 from 1430.
Append the next digit (6) from the dividend to 44 and continue with: 446 / 231

Step 6:
The number 231 fits into 446 1 times, leaving a remainder of 215.
The next digit of our result is 1. 
Result so far: 3861.0
If we subtract 231 from 446, we get 215.
Fetch the next digit (6) from the dividend, attach it to 215 and continue: 2156 / 231

Going ahead to step 7:
The number 231 fits into 2156 9 times, leaving a remainder of 77.
Put 9 as the next digit of the answer. 
Result so far: 38619.0
If we subtract 2079 from 2156, we get 77.
Bring next digit (4) of the dividend behind the 77 and repeat the process: 774 / 231

Advancing to step 8:
When dividing 774 by 231, we get 3 with a remainder of 81.
Use 3 as the next digit of our solution. 
Result so far: 386193.0
The remainder is 81 after subtracting 693 from 774.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Let's proceed to step 9:
If we divide 810 by 231, we get 3 and a remainder of 117.
Use 3 as the next digit of our solution. 
Result so far: 386193.3
Deduct 693 from 810 and we're left with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

Advancing to step 10:
1170 divided by 231 is 5 with a remainder of 15.
Record the quotient 5 as the next digit in the result. 
Result so far: 386193.35
Subtract 1155 from 1170 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.

Going ahead to step 11:
231 goes into 150 0 times with a remainder of 150.
The next digit of our result is 0. 
Result so far: 386193.35
The remainder is 150 after subtracting 0 from 150.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1500, and continue the process.

Going ahead to step 12:
When dividing 1500 by 231, we get 6 with a remainder of 114.
The number 6 becomes the next digit in our result. 
Result so far: 386193.3506
Subtracting 1386 from 1500 leaves us with 114.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1140, and continue the process.

Let's proceed to step 13:
231 can be fit into 1140 4 times, resulting in a remainder of 216.
The next digit of our result is 4. 
Result so far: 386193.35064
If we take 924 away from 1140, we end up with 216.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2160, and continue the process.

Moving on to step 14:
If we divide 2160 by 231, we get 9 and a remainder of 81.
Write down 9 as next digit of the result. 
Result so far: 386193.350649
Subtracting 2079 from 2160 leaves us with 81.
Since there are no more digits in the dividend, we add a zero to the remainder making it 810, and continue the process.

Moving on to step 15:
If we divide 810 by 231, we get 3 and a remainder of 117.
Use 3 as the next digit of our solution. 
Result so far: 386193.3506493
Subtracting 693 from 810 leaves us with 117.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1170, and continue the process.

On to step 16:
231 can be fit into 1170 5 times, resulting in a remainder of 15.
The number 5 becomes the next digit in our result. 
Result so far: 386193.35064935
If we take 1155 away from 1170, we end up with 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 final outcome is 386193.35064935, with a leftover of 1.5e-08.