89422487 divided by 641 
Our goal is to divide 89422487 by 641.

Step 1:
The number 641 fits into 8 0 times, leaving a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (9) from the dividend and append it to 8, then repeat: 89 / 641

On to step 2:
641 goes into 89 0 times with a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtracting 0 from 89 leaves us with 89.
Fetch the next digit (4) from the dividend, attach it to 89 and continue: 894 / 641

Step 3:
If we divide 894 by 641, we get 1 and a remainder of 253.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
The remainder is 253 after subtracting 641 from 894.
Bring next digit (2) of the dividend behind the 253 and repeat the process: 2532 / 641

Advancing to step 4:
If we divide 2532 by 641, we get 3 and a remainder of 609.
Put 3 as the next digit of the answer. 
Result so far: 13.0
Deduct 1923 from 2532 and we're left with 609.
Append the next digit (2) from the dividend to 609 and continue with: 6092 / 641

Moving on to step 5:
When dividing 6092 by 641, we get 9 with a remainder of 323.
The next digit of our result is 9. 
Result so far: 139.0
The remainder is 323 after subtracting 5769 from 6092.
Bring next digit (4) of the dividend behind the 323 and repeat the process: 3234 / 641

Let's proceed to step 6:
3234 divided by 641 is 5 with a remainder of 29.
The number 5 becomes the next digit in our result. 
Result so far: 1395.0
Subtract 3205 from 3234 to get 29.
Take the next digit (8) from the dividend and append it to 29, then repeat: 298 / 641

On to step 7:
641 can be fit into 298 0 times, resulting in a remainder of 298.
Use 0 as the next digit of our solution. 
Result so far: 13950.0
Deduct 0 from 298 and we're left with 298.
Grab the next digit (7) from the dividend, add it to 298, then carry on: 2987 / 641

Moving on to step 8:
641 can be fit into 2987 4 times, resulting in a remainder of 423.
Use 4 as the next digit of our solution. 
Result so far: 139504.0
Deduct 2564 from 2987 and we're left with 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

Let's proceed to step 9:
641 goes into 4230 6 times with a remainder of 384.
Use 6 as the next digit of our solution. 
Result so far: 139504.6
If we subtract 3846 from 4230, we get 384.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3840, and continue the process.

Step 10:
641 can be fit into 3840 5 times, resulting in a remainder of 635.
Use 5 as the next digit of our solution. 
Result so far: 139504.65
Deduct 3205 from 3840 and we're left with 635.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6350, and continue the process.

Moving on to step 11:
When dividing 6350 by 641, we get 9 with a remainder of 581.
The number 9 becomes the next digit in our result. 
Result so far: 139504.659
The remainder is 581 after subtracting 5769 from 6350.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5810, and continue the process.

Let's proceed to step 12:
When dividing 5810 by 641, we get 9 with a remainder of 41.
Record the quotient 9 as the next digit in the result. 
Result so far: 139504.6599
Subtracting 5769 from 5810 leaves us with 41.
Since there are no more digits in the dividend, we add a zero to the remainder making it 410, and continue the process.

The final result is 139504.6599 with a remainder of 0.00041.