We're dividing 83111960 by 641 
We want to figure out the number of times 83111960 can be divided by 641.

On to step 1:
8 divided by 641 is 0 with a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Deduct 0 from 8 and we're left with 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 641

On to step 2:
The number 641 fits into 83 0 times, leaving a remainder of 83.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Deduct 0 from 83 and we're left with 83.
Append the next digit (1) from the dividend to 83 and continue with: 831 / 641

On to step 3:
If we divide 831 by 641, we get 1 and a remainder of 190.
Use 1 as the next digit of our solution. 
Result so far: 1.0
Deduct 641 from 831 and we're left with 190.
Grab the next digit (1) from the dividend, add it to 190, then carry on: 1901 / 641

Advancing to step 4:
1901 divided by 641 is 2 with a remainder of 619.
Write down 2 as next digit of the result. 
Result so far: 12.0
If we subtract 1282 from 1901, we get 619.
Grab the next digit (1) from the dividend, add it to 619, then carry on: 6191 / 641

Let's proceed to step 5:
641 can be fit into 6191 9 times, resulting in a remainder of 422.
The number 9 becomes the next digit in our result. 
Result so far: 129.0
If we take 5769 away from 6191, we end up with 422.
Include the next digit (9) from the dividend after 422, then repeat: 4229 / 641

On to step 6:
The number 641 fits into 4229 6 times, leaving a remainder of 383.
Record the quotient 6 as the next digit in the result. 
Result so far: 1296.0
The remainder is 383 after subtracting 3846 from 4229.
Append the next digit (6) from the dividend to 383 and continue with: 3836 / 641

Going ahead to step 7:
641 can be fit into 3836 5 times, resulting in a remainder of 631.
Write down 5 as next digit of the result. 
Result so far: 12965.0
The remainder is 631 after subtracting 3205 from 3836.
Include the next digit (0) from the dividend after 631, then repeat: 6310 / 641

Going ahead to step 8:
641 can be fit into 6310 9 times, resulting in a remainder of 541.
Use 9 as the next digit of our solution. 
Result so far: 129659.0
Subtracting 5769 from 6310 leaves us with 541.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5410, and continue the process.

Advancing to step 9:
If we divide 5410 by 641, we get 8 and a remainder of 282.
Record the quotient 8 as the next digit in the result. 
Result so far: 129659.8
If we subtract 5128 from 5410, we get 282.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2820, and continue the process.

Moving on to step 10:
641 goes into 2820 4 times with a remainder of 256.
Put 4 as the next digit of the answer. 
Result so far: 129659.84
Deduct 2564 from 2820 and we're left with 256.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2560, and continue the process.

Going ahead to step 11:
The number 641 fits into 2560 3 times, leaving a remainder of 637.
Put 3 as the next digit of the answer. 
Result so far: 129659.843
If we take 1923 away from 2560, we end up with 637.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6370, and continue the process.

On to step 12:
The number 641 fits into 6370 9 times, leaving a remainder of 601.
The number 9 becomes the next digit in our result. 
Result so far: 129659.8439
If we subtract 5769 from 6370, we get 601.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6010, and continue the process.

Let's proceed to step 13:
641 goes into 6010 9 times with a remainder of 241.
Put 9 as the next digit of the answer. 
Result so far: 129659.84399
Subtract 5769 from 6010 to get 241.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2410, and continue the process.

The quotient of the division is 129659.84399, and the remainder is 0.000241.