91456807 divided by 641 
We want to figure out the number of times 91456807 can be divided by 641.

Moving on to step 1:
641 goes into 9 0 times with a remainder of 9.
Write down 0 as next digit of the result. 
Result so far: 0.0
If we subtract 0 from 9, we get 9.
Include the next digit (1) from the dividend after 9, then repeat: 91 / 641

Step 2:
When dividing 91 by 641, we get 0 with a remainder of 91.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 91 and we're left with 91.
Take the next digit (4) from the dividend and append it to 91, then repeat: 914 / 641

Moving on to step 3:
641 can be fit into 914 1 times, resulting in a remainder of 273.
Write down 1 as next digit of the result. 
Result so far: 1.0
Subtract 641 from 914 to get 273.
Bring next digit (5) of the dividend behind the 273 and repeat the process: 2735 / 641

Moving on to step 4:
641 can be fit into 2735 4 times, resulting in a remainder of 171.
Put 4 as the next digit of the answer. 
Result so far: 14.0
Deduct 2564 from 2735 and we're left with 171.
Append the next digit (6) from the dividend to 171 and continue with: 1716 / 641

Step 5:
The number 641 fits into 1716 2 times, leaving a remainder of 434.
Write down 2 as next digit of the result. 
Result so far: 142.0
If we take 1282 away from 1716, we end up with 434.
Include the next digit (8) from the dividend after 434, then repeat: 4348 / 641

Step 6:
641 can be fit into 4348 6 times, resulting in a remainder of 502.
Write down 6 as next digit of the result. 
Result so far: 1426.0
Subtract 3846 from 4348 to get 502.
Bring next digit (0) of the dividend behind the 502 and repeat the process: 5020 / 641

Step 7:
641 can be fit into 5020 7 times, resulting in a remainder of 533.
Record the quotient 7 as the next digit in the result. 
Result so far: 14267.0
If we subtract 4487 from 5020, we get 533.
Fetch the next digit (7) from the dividend, attach it to 533 and continue: 5337 / 641

Moving on to step 8:
When dividing 5337 by 641, we get 8 with a remainder of 209.
Put 8 as the next digit of the answer. 
Result so far: 142678.0
Deduct 5128 from 5337 and we're left with 209.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2090, and continue the process.

Let's proceed to step 9:
641 can be fit into 2090 3 times, resulting in a remainder of 167.
Record the quotient 3 as the next digit in the result. 
Result so far: 142678.3
Subtract 1923 from 2090 to get 167.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1670, and continue the process.

On to step 10:
If we divide 1670 by 641, we get 2 and a remainder of 388.
Use 2 as the next digit of our solution. 
Result so far: 142678.32
The remainder is 388 after subtracting 1282 from 1670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3880, and continue the process.

Advancing to step 11:
If we divide 3880 by 641, we get 6 and a remainder of 34.
Record the quotient 6 as the next digit in the result. 
Result so far: 142678.326
Subtracting 3846 from 3880 leaves us with 34.
Since there are no more digits in the dividend, we add a zero to the remainder making it 340, and continue the process.

Step 12:
641 can be fit into 340 0 times, resulting in a remainder of 340.
Use 0 as the next digit of our solution. 
Result so far: 142678.326
The remainder is 340 after subtracting 0 from 340.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3400, and continue the process.

Going ahead to step 13:
If we divide 3400 by 641, we get 5 and a remainder of 195.
Record the quotient 5 as the next digit in the result. 
Result so far: 142678.32605
Subtract 3205 from 3400 to get 195.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1950, and continue the process.

Moving on to step 14:
641 goes into 1950 3 times with a remainder of 27.
Record the quotient 3 as the next digit in the result. 
Result so far: 142678.326053
Subtract 1923 from 1950 to get 27.
Since there are no more digits in the dividend, we add a zero to the remainder making it 270, and continue the process.

Going ahead to step 15:
The number 641 fits into 270 0 times, leaving a remainder of 270.
Write down 0 as next digit of the result. 
Result so far: 142678.326053
The remainder is 270 after subtracting 0 from 270.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2700, and continue the process.

Let's proceed to step 16:
If we divide 2700 by 641, we get 4 and a remainder of 136.
Record the quotient 4 as the next digit in the result. 
Result so far: 142678.32605304
Subtract 2564 from 2700 to get 136.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1360, and continue the process.

The final result is 142678.32605304 with a remainder of 1.36e-07.