644236 ÷ 89 
Our goal is to divide 644236 by 89.

Let's proceed to step 1:
If we divide 6 by 89, we get 0 and a remainder of 6.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we subtract 0 from 6, we get 6.
Fetch the next digit (4) from the dividend, attach it to 6 and continue: 64 / 89

Moving on to step 2:
The number 89 fits into 64 0 times, leaving a remainder of 64.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 64 to get 64.
Take the next digit (4) from the dividend and append it to 64, then repeat: 644 / 89

Moving on to step 3:
When dividing 644 by 89, we get 7 with a remainder of 21.
Write down 7 as next digit of the result. 
Result so far: 7.0
The remainder is 21 after subtracting 623 from 644.
Grab the next digit (2) from the dividend, add it to 21, then carry on: 212 / 89

On to step 4:
The number 89 fits into 212 2 times, leaving a remainder of 34.
Put 2 as the next digit of the answer. 
Result so far: 72.0
Subtract 178 from 212 to get 34.
Include the next digit (3) from the dividend after 34, then repeat: 343 / 89

Going ahead to step 5:
When dividing 343 by 89, we get 3 with a remainder of 76.
The number 3 becomes the next digit in our result. 
Result so far: 723.0
Subtracting 267 from 343 leaves us with 76.
Take the next digit (6) from the dividend and append it to 76, then repeat: 766 / 89

Step 6:
89 goes into 766 8 times with a remainder of 54.
Write down 8 as next digit of the result. 
Result so far: 7238.0
Subtract 712 from 766 to get 54.
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 7:
89 goes into 540 6 times with a remainder of 6.
Write down 6 as next digit of the result. 
Result so far: 7238.6
Subtract 534 from 540 to get 6.
Since there are no more digits in the dividend, we add a zero to the remainder making it 60, and continue the process.

Advancing to step 8:
89 goes into 60 0 times with a remainder of 60.
The next digit of our result is 0. 
Result so far: 7238.6
Deduct 0 from 60 and we're left 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.

Advancing to step 9:
600 divided by 89 is 6 with a remainder of 66.
Write down 6 as next digit of the result. 
Result so far: 7238.606
Subtract 534 from 600 to get 66.
Since there are no more digits in the dividend, we add a zero to the remainder making it 660, and continue the process.

Going ahead to step 10:
660 divided by 89 is 7 with a remainder of 37.
Use 7 as the next digit of our solution. 
Result so far: 7238.6067
Subtract 623 from 660 to get 37.
Since there are no more digits in the dividend, we add a zero to the remainder making it 370, and continue the process.

Moving on to step 11:
If we divide 370 by 89, we get 4 and a remainder of 14.
The number 4 becomes the next digit in our result. 
Result so far: 7238.60674
The remainder is 14 after subtracting 356 from 370.
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:
89 can be fit into 140 1 times, resulting in a remainder of 51.
Use 1 as the next digit of our solution. 
Result so far: 7238.606741
If we subtract 89 from 140, we get 51.
Since there are no more digits in the dividend, we add a zero to the remainder making it 510, and continue the process.

Going ahead to step 13:
The number 89 fits into 510 5 times, leaving a remainder of 65.
Use 5 as the next digit of our solution. 
Result so far: 7238.6067415
If we subtract 445 from 510, we get 65.
Since there are no more digits in the dividend, we add a zero to the remainder making it 650, and continue the process.

Going ahead to step 14:
650 divided by 89 is 7 with a remainder of 27.
The number 7 becomes the next digit in our result. 
Result so far: 7238.60674157
If we take 623 away from 650, we end up with 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

In conclusion, the division gives 7238.60674157 with a balance of 2.7e-08.