Let's divide 89384158 by 640
Our goal is to divide 89384158 by 640.

On to step 1:
When dividing 8 by 640, we get 0 with a remainder of 8.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 8, we end up with 8.
Append the next digit (9) from the dividend to 8 and continue with: 89 / 640

Step 2:
The number 640 fits into 89 0 times, leaving a remainder of 89.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
The remainder is 89 after subtracting 0 from 89.
Bring next digit (3) of the dividend behind the 89 and repeat the process: 893 / 640

Advancing to step 3:
If we divide 893 by 640, we get 1 and a remainder of 253.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 640 from 893 and we're left with 253.
Fetch the next digit (8) from the dividend, attach it to 253 and continue: 2538 / 640

On to step 4:
When dividing 2538 by 640, we get 3 with a remainder of 618.
Use 3 as the next digit of our solution. 
Result so far: 13.0
If we take 1920 away from 2538, we end up with 618.
Include the next digit (4) from the dividend after 618, then repeat: 6184 / 640

Moving on to step 5:
6184 divided by 640 is 9 with a remainder of 424.
Record the quotient 9 as the next digit in the result. 
Result so far: 139.0
The remainder is 424 after subtracting 5760 from 6184.
Bring next digit (1) of the dividend behind the 424 and repeat the process: 4241 / 640

Step 6:
640 goes into 4241 6 times with a remainder of 401.
The number 6 becomes the next digit in our result. 
Result so far: 1396.0
If we take 3840 away from 4241, we end up with 401.
Bring next digit (5) of the dividend behind the 401 and repeat the process: 4015 / 640

Going ahead to step 7:
4015 divided by 640 is 6 with a remainder of 175.
Record the quotient 6 as the next digit in the result. 
Result so far: 13966.0
Deduct 3840 from 4015 and we're left with 175.
Grab the next digit (8) from the dividend, add it to 175, then carry on: 1758 / 640

Going ahead to step 8:
If we divide 1758 by 640, we get 2 and a remainder of 478.
Record the quotient 2 as the next digit in the result. 
Result so far: 139662.0
Subtracting 1280 from 1758 leaves us with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Advancing to step 9:
640 can be fit into 4780 7 times, resulting in a remainder of 300.
Write down 7 as next digit of the result. 
Result so far: 139662.7
The remainder is 300 after subtracting 4480 from 4780.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3000, and continue the process.

On to step 10:
640 can be fit into 3000 4 times, resulting in a remainder of 440.
The next digit of our result is 4. 
Result so far: 139662.74
If we take 2560 away from 3000, we end up with 440.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4400, and continue the process.

Advancing to step 11:
640 goes into 4400 6 times with a remainder of 560.
The number 6 becomes the next digit in our result. 
Result so far: 139662.746
Deduct 3840 from 4400 and we're left with 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Going ahead to step 12:
640 can be fit into 5600 8 times, resulting in a remainder of 480.
Put 8 as the next digit of the answer. 
Result so far: 139662.7468
Subtracting 5120 from 5600 leaves us with 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

Going ahead to step 13:
The number 640 fits into 4800 7 times, leaving a remainder of 320.
Record the quotient 7 as the next digit in the result. 
Result so far: 139662.74687
Deduct 4480 from 4800 and we're left with 320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3200, and continue the process.

Moving on to step 14:
640 goes into 3200 5 times with a remainder of 0.
Write down 5 as next digit of the result. 
Result so far: 139662.746875
Subtract 3200 from 3200 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Advancing to step 15:
When dividing 0 by 640, we get 0 with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 139662.746875
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 16:
The number 640 fits into 0 0 times, leaving a remainder of 0.
The next digit of our result is 0. 
Result so far: 139662.746875
Subtracting 0 from 0 leaves us with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

In conclusion, the division gives 139662.746875 with a balance of 0.0.