81641933 divided by 670 
We want to figure out the number of times 81641933 can be divided by 670.

On to step 1:
If we divide 8 by 670, we get 0 and a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
If we subtract 0 from 8, we get 8.
Take the next digit (1) from the dividend and append it to 8, then repeat: 81 / 670

Going ahead to step 2:
670 can be fit into 81 0 times, resulting in a remainder of 81.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 81 to get 81.
Fetch the next digit (6) from the dividend, attach it to 81 and continue: 816 / 670

Advancing to step 3:
670 can be fit into 816 1 times, resulting in a remainder of 146.
The next digit of our result is 1. 
Result so far: 1.0
Deduct 670 from 816 and we're left with 146.
Take the next digit (4) from the dividend and append it to 146, then repeat: 1464 / 670

Advancing to step 4:
When dividing 1464 by 670, we get 2 with a remainder of 124.
Record the quotient 2 as the next digit in the result. 
Result so far: 12.0
Deduct 1340 from 1464 and we're left with 124.
Grab the next digit (1) from the dividend, add it to 124, then carry on: 1241 / 670

Moving on to step 5:
670 can be fit into 1241 1 times, resulting in a remainder of 571.
Record the quotient 1 as the next digit in the result. 
Result so far: 121.0
If we take 670 away from 1241, we end up with 571.
Fetch the next digit (9) from the dividend, attach it to 571 and continue: 5719 / 670

Going ahead to step 6:
5719 divided by 670 is 8 with a remainder of 359.
Use 8 as the next digit of our solution. 
Result so far: 1218.0
Subtract 5360 from 5719 to get 359.
Append the next digit (3) from the dividend to 359 and continue with: 3593 / 670

Advancing to step 7:
The number 670 fits into 3593 5 times, leaving a remainder of 243.
The number 5 becomes the next digit in our result. 
Result so far: 12185.0
If we take 3350 away from 3593, we end up with 243.
Grab the next digit (3) from the dividend, add it to 243, then carry on: 2433 / 670

Let's proceed to step 8:
670 goes into 2433 3 times with a remainder of 423.
The next digit of our result is 3. 
Result so far: 121853.0
Deduct 2010 from 2433 and we're left with 423.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4230, and continue the process.

Advancing to step 9:
When dividing 4230 by 670, we get 6 with a remainder of 210.
Record the quotient 6 as the next digit in the result. 
Result so far: 121853.6
If we take 4020 away from 4230, we end up with 210.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2100, and continue the process.

Going ahead to step 10:
The number 670 fits into 2100 3 times, leaving a remainder of 90.
Put 3 as the next digit of the answer. 
Result so far: 121853.63
If we take 2010 away from 2100, we end up with 90.
Since there are no more digits in the dividend, we add a zero to the remainder making it 900, and continue the process.

Moving on to step 11:
If we divide 900 by 670, we get 1 and a remainder of 230.
The next digit of our result is 1. 
Result so far: 121853.631
The remainder is 230 after subtracting 670 from 900.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2300, and continue the process.

Step 12:
When dividing 2300 by 670, we get 3 with a remainder of 290.
Write down 3 as next digit of the result. 
Result so far: 121853.6313
Subtracting 2010 from 2300 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.

Advancing to step 13:
When dividing 2900 by 670, we get 4 with a remainder of 220.
Use 4 as the next digit of our solution. 
Result so far: 121853.63134
Deduct 2680 from 2900 and we're left with 220.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2200, and continue the process.

On to step 14:
670 can be fit into 2200 3 times, resulting in a remainder of 190.
The number 3 becomes the next digit in our result. 
Result so far: 121853.631343
The remainder is 190 after subtracting 2010 from 2200.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1900, and continue the process.

On to step 15:
670 goes into 1900 2 times with a remainder of 560.
Write down 2 as next digit of the result. 
Result so far: 121853.6313432
Subtract 1340 from 1900 to get 560.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5600, and continue the process.

Step 16:
If we divide 5600 by 670, we get 8 and a remainder of 240.
The next digit of our result is 8. 
Result so far: 121853.63134328
If we take 5360 away from 5600, we end up with 240.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2400, and continue the process.

The quotient of the division is 121853.63134328, and the remainder is 2.4e-07.