We look at the division of 91953158 by 640 
We want to figure out the number of times 91953158 can be divided by 640.

Going ahead to step 1:
9 divided by 640 is 0 with a remainder of 9.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Subtract 0 from 9 to get 9.
Take the next digit (1) from the dividend and append it to 9, then repeat: 91 / 640

Step 2:
91 divided by 640 is 0 with a remainder of 91.
Use 0 as the next digit of our solution. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Grab the next digit (9) from the dividend, add it to 91, then carry on: 919 / 640

On to step 3:
640 goes into 919 1 times with a remainder of 279.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtract 640 from 919 to get 279.
Append the next digit (5) from the dividend to 279 and continue with: 2795 / 640

On to step 4:
If we divide 2795 by 640, we get 4 and a remainder of 235.
Use 4 as the next digit of our solution. 
Result so far: 14.0
The remainder is 235 after subtracting 2560 from 2795.
Include the next digit (3) from the dividend after 235, then repeat: 2353 / 640

Let's proceed to step 5:
640 goes into 2353 3 times with a remainder of 433.
The number 3 becomes the next digit in our result. 
Result so far: 143.0
If we take 1920 away from 2353, we end up with 433.
Include the next digit (1) from the dividend after 433, then repeat: 4331 / 640

Advancing to step 6:
640 goes into 4331 6 times with a remainder of 491.
Write down 6 as next digit of the result. 
Result so far: 1436.0
Subtract 3840 from 4331 to get 491.
Grab the next digit (5) from the dividend, add it to 491, then carry on: 4915 / 640

Going ahead to step 7:
4915 divided by 640 is 7 with a remainder of 435.
Put 7 as the next digit of the answer. 
Result so far: 14367.0
Deduct 4480 from 4915 and we're left with 435.
Append the next digit (8) from the dividend to 435 and continue with: 4358 / 640

Step 8:
When dividing 4358 by 640, we get 6 with a remainder of 518.
The next digit of our result is 6. 
Result so far: 143676.0
Subtracting 3840 from 4358 leaves us with 518.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5180, and continue the process.

Step 9:
640 can be fit into 5180 8 times, resulting in a remainder of 60.
Record the quotient 8 as the next digit in the result. 
Result so far: 143676.8
Subtract 5120 from 5180 to get 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 10:
600 divided by 640 is 0 with a remainder of 600.
Put 0 as the next digit of the answer. 
Result so far: 143676.8
Deduct 0 from 600 and we're left with 600.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6000, and continue the process.

Going ahead to step 11:
6000 divided by 640 is 9 with a remainder of 240.
The next digit of our result is 9. 
Result so far: 143676.809
The remainder is 240 after subtracting 5760 from 6000.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

Advancing to step 12:
When dividing 2400 by 640, we get 3 with a remainder of 480.
The number 3 becomes the next digit in our result. 
Result so far: 143676.8093
Subtracting 1920 from 2400 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.

Step 13:
The number 640 fits into 4800 7 times, leaving a remainder of 320.
Write down 7 as next digit of the result. 
Result so far: 143676.80937
Subtracting 4480 from 4800 leaves us 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.

Going ahead to step 14:
640 goes into 3200 5 times with a remainder of 0.
The next digit of our result is 5. 
Result so far: 143676.809375
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.

Moving on to step 15:
640 goes into 0 0 times with a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 143676.809375
The remainder is 0 after subtracting 0 from 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Let's proceed to step 16:
640 goes into 0 0 times with a remainder of 0.
Use 0 as the next digit of our solution. 
Result so far: 143676.809375
Deduct 0 from 0 and we're left 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 143676.809375 with a balance of 0.0.