We divide 91813642 by 644
We're looking to find how many times 644 goes into 91813642.

Advancing to step 1:
When dividing 9 by 644, we get 0 with a remainder of 9.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Deduct 0 from 9 and we're left with 9.
Grab the next digit (1) from the dividend, add it to 9, then carry on: 91 / 644

Step 2:
When dividing 91 by 644, we get 0 with a remainder of 91.
Write down 0 as next digit of the result. 
Result so far: 0.0
The remainder is 91 after subtracting 0 from 91.
Grab the next digit (8) from the dividend, add it to 91, then carry on: 918 / 644

Advancing to step 3:
918 divided by 644 is 1 with a remainder of 274.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
The remainder is 274 after subtracting 644 from 918.
Append the next digit (1) from the dividend to 274 and continue with: 2741 / 644

Going ahead to step 4:
2741 divided by 644 is 4 with a remainder of 165.
Record the quotient 4 as the next digit in the result. 
Result so far: 14.0
Deduct 2576 from 2741 and we're left with 165.
Bring next digit (3) of the dividend behind the 165 and repeat the process: 1653 / 644

Going ahead to step 5:
If we divide 1653 by 644, we get 2 and a remainder of 365.
The next digit of our result is 2. 
Result so far: 142.0
If we subtract 1288 from 1653, we get 365.
Grab the next digit (6) from the dividend, add it to 365, then carry on: 3656 / 644

On to step 6:
The number 644 fits into 3656 5 times, leaving a remainder of 436.
The next digit of our result is 5. 
Result so far: 1425.0
If we subtract 3220 from 3656, we get 436.
Grab the next digit (4) from the dividend, add it to 436, then carry on: 4364 / 644

On to step 7:
When dividing 4364 by 644, we get 6 with a remainder of 500.
The number 6 becomes the next digit in our result. 
Result so far: 14256.0
Subtracting 3864 from 4364 leaves us with 500.
Take the next digit (2) from the dividend and append it to 500, then repeat: 5002 / 644

Going ahead to step 8:
644 can be fit into 5002 7 times, resulting in a remainder of 494.
The next digit of our result is 7. 
Result so far: 142567.0
The remainder is 494 after subtracting 4508 from 5002.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4940, and continue the process.

Moving on to step 9:
644 can be fit into 4940 7 times, resulting in a remainder of 432.
The number 7 becomes the next digit in our result. 
Result so far: 142567.7
Subtracting 4508 from 4940 leaves us with 432.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4320, and continue the process.

Step 10:
644 goes into 4320 6 times with a remainder of 456.
Put 6 as the next digit of the answer. 
Result so far: 142567.76
Subtracting 3864 from 4320 leaves us with 456.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4560, and continue the process.

Going ahead to step 11:
The number 644 fits into 4560 7 times, leaving a remainder of 52.
Use 7 as the next digit of our solution. 
Result so far: 142567.767
If we subtract 4508 from 4560, we get 52.
Since there are no more digits in the dividend, we add a zero to the remainder making it 520, and continue the process.

Advancing to step 12:
644 can be fit into 520 0 times, resulting in a remainder of 520.
Put 0 as the next digit of the answer. 
Result so far: 142567.767
The remainder is 520 after subtracting 0 from 520.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5200, and continue the process.

Moving on to step 13:
5200 divided by 644 is 8 with a remainder of 48.
Put 8 as the next digit of the answer. 
Result so far: 142567.76708
If we take 5152 away from 5200, we end up with 48.
Since there are no more digits in the dividend, we add a zero to the remainder making it 480, and continue the process.

Going ahead to step 14:
480 divided by 644 is 0 with a remainder of 480.
Put 0 as the next digit of the answer. 
Result so far: 142567.76708
If we subtract 0 from 480, we get 480.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4800, and continue the process.

On to step 15:
644 can be fit into 4800 7 times, resulting in a remainder of 292.
Put 7 as the next digit of the answer. 
Result so far: 142567.7670807
The remainder is 292 after subtracting 4508 from 4800.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2920, and continue the process.

Advancing to step 16:
2920 divided by 644 is 4 with a remainder of 344.
The next digit of our result is 4. 
Result so far: 142567.76708074
If we take 2576 away from 2920, we end up with 344.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3440, and continue the process.

The quotient of the division is 142567.76708074, and the remainder is 3.44e-07.