83686480 ÷ 641 
Let's see how many times 641 fits into 83686480.

Step 1:
641 can be fit into 8 0 times, resulting in a remainder of 8.
Write down 0 as next digit of the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (3) from the dividend and append it to 8, then repeat: 83 / 641

On to step 2:
641 can be fit into 83 0 times, resulting in a remainder of 83.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
Deduct 0 from 83 and we're left with 83.
Include the next digit (6) from the dividend after 83, then repeat: 836 / 641

Let's proceed to step 3:
836 divided by 641 is 1 with a remainder of 195.
Write down 1 as next digit of the result. 
Result so far: 1.0
If we subtract 641 from 836, we get 195.
Bring next digit (8) of the dividend behind the 195 and repeat the process: 1958 / 641

Let's proceed to step 4:
641 can be fit into 1958 3 times, resulting in a remainder of 35.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 35 after subtracting 1923 from 1958.
Append the next digit (6) from the dividend to 35 and continue with: 356 / 641

Step 5:
641 goes into 356 0 times with a remainder of 356.
The number 0 becomes the next digit in our result. 
Result so far: 130.0
If we subtract 0 from 356, we get 356.
Fetch the next digit (4) from the dividend, attach it to 356 and continue: 3564 / 641

Let's proceed to step 6:
The number 641 fits into 3564 5 times, leaving a remainder of 359.
Put 5 as the next digit of the answer. 
Result so far: 1305.0
Deduct 3205 from 3564 and we're left with 359.
Fetch the next digit (8) from the dividend, attach it to 359 and continue: 3598 / 641

Moving on to step 7:
If we divide 3598 by 641, we get 5 and a remainder of 393.
The next digit of our result is 5. 
Result so far: 13055.0
Subtract 3205 from 3598 to get 393.
Fetch the next digit (0) from the dividend, attach it to 393 and continue: 3930 / 641

Let's proceed to step 8:
641 goes into 3930 6 times with a remainder of 84.
The next digit of our result is 6. 
Result so far: 130556.0
The remainder is 84 after subtracting 3846 from 3930.
Since there are no more digits in the dividend, we add a zero to the remainder making it 840, and continue the process.

Let's proceed to step 9:
If we divide 840 by 641, we get 1 and a remainder of 199.
The number 1 becomes the next digit in our result. 
Result so far: 130556.1
Subtracting 641 from 840 leaves us with 199.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1990, and continue the process.

Going ahead to step 10:
The number 641 fits into 1990 3 times, leaving a remainder of 67.
The next digit of our result is 3. 
Result so far: 130556.13
If we subtract 1923 from 1990, we get 67.
Since there are no more digits in the dividend, we add a zero to the remainder making it 670, and continue the process.

Advancing to step 11:
When dividing 670 by 641, we get 1 with a remainder of 29.
The number 1 becomes the next digit in our result. 
Result so far: 130556.131
The remainder is 29 after subtracting 641 from 670.
Since there are no more digits in the dividend, we add a zero to the remainder making it 290, and continue the process.

On to step 12:
641 can be fit into 290 0 times, resulting in a remainder of 290.
The next digit of our result is 0. 
Result so far: 130556.131
Subtracting 0 from 290 leaves us with 290.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2900, and continue the process.

Step 13:
When dividing 2900 by 641, we get 4 with a remainder of 336.
Put 4 as the next digit of the answer. 
Result so far: 130556.13104
Deduct 2564 from 2900 and we're left with 336.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3360, and continue the process.

Let's proceed to step 14:
641 goes into 3360 5 times with a remainder of 155.
The next digit of our result is 5. 
Result so far: 130556.131045
Subtract 3205 from 3360 to get 155.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1550, and continue the process.

Moving on to step 15:
1550 divided by 641 is 2 with a remainder of 268.
Record the quotient 2 as the next digit in the result. 
Result so far: 130556.1310452
Subtracting 1282 from 1550 leaves us with 268.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2680, and continue the process.

Let's proceed to step 16:
If we divide 2680 by 641, we get 4 and a remainder of 116.
The next digit of our result is 4. 
Result so far: 130556.13104524
If we take 2564 away from 2680, we end up with 116.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1160, and continue the process.

The quotient of the division is 130556.13104524, and the remainder is 1.16e-07.