87573898 divided by 641 
We want to figure out the number of times 87573898 can be divided by 641.

Going ahead to step 1:
641 can be fit into 8 0 times, resulting in a remainder of 8.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Take the next digit (7) from the dividend and append it to 8, then repeat: 87 / 641

Moving on to step 2:
The number 641 fits into 87 0 times, leaving a remainder of 87.
Use 0 as the next digit of our solution. 
Result so far: 0.0
Subtracting 0 from 87 leaves us with 87.
Bring next digit (5) of the dividend behind the 87 and repeat the process: 875 / 641

On to step 3:
641 can be fit into 875 1 times, resulting in a remainder of 234.
The number 1 becomes the next digit in our result. 
Result so far: 1.0
If we subtract 641 from 875, we get 234.
Include the next digit (7) from the dividend after 234, then repeat: 2347 / 641

Moving on to step 4:
641 goes into 2347 3 times with a remainder of 424.
Record the quotient 3 as the next digit in the result. 
Result so far: 13.0
The remainder is 424 after subtracting 1923 from 2347.
Grab the next digit (3) from the dividend, add it to 424, then carry on: 4243 / 641

Moving on to step 5:
641 goes into 4243 6 times with a remainder of 397.
The number 6 becomes the next digit in our result. 
Result so far: 136.0
If we take 3846 away from 4243, we end up with 397.
Take the next digit (8) from the dividend and append it to 397, then repeat: 3978 / 641

Going ahead to step 6:
641 goes into 3978 6 times with a remainder of 132.
Record the quotient 6 as the next digit in the result. 
Result so far: 1366.0
The remainder is 132 after subtracting 3846 from 3978.
Take the next digit (9) from the dividend and append it to 132, then repeat: 1329 / 641

Let's proceed to step 7:
641 can be fit into 1329 2 times, resulting in a remainder of 47.
Use 2 as the next digit of our solution. 
Result so far: 13662.0
If we subtract 1282 from 1329, we get 47.
Bring next digit (8) of the dividend behind the 47 and repeat the process: 478 / 641

Moving on to step 8:
If we divide 478 by 641, we get 0 and a remainder of 478.
The number 0 becomes the next digit in our result. 
Result so far: 136620.0
If we take 0 away from 478, we end up with 478.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4780, and continue the process.

Let's proceed to step 9:
If we divide 4780 by 641, we get 7 and a remainder of 293.
The number 7 becomes the next digit in our result. 
Result so far: 136620.7
If we take 4487 away from 4780, we end up with 293.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2930, and continue the process.

Let's proceed to step 10:
641 can be fit into 2930 4 times, resulting in a remainder of 366.
Use 4 as the next digit of our solution. 
Result so far: 136620.74
Subtracting 2564 from 2930 leaves us with 366.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3660, and continue the process.

Step 11:
641 goes into 3660 5 times with a remainder of 455.
Write down 5 as next digit of the result. 
Result so far: 136620.745
If we take 3205 away from 3660, we end up with 455.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4550, and continue the process.

Going ahead to step 12:
641 goes into 4550 7 times with a remainder of 63.
Write down 7 as next digit of the result. 
Result so far: 136620.7457
Subtract 4487 from 4550 to get 63.
Since there are no more digits in the dividend, we add a zero to the remainder making it 630, and continue the process.

Let's proceed to step 13:
When dividing 630 by 641, we get 0 with a remainder of 630.
The next digit of our result is 0. 
Result so far: 136620.7457
The remainder is 630 after subtracting 0 from 630.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6300, and continue the process.

Advancing to step 14:
641 goes into 6300 9 times with a remainder of 531.
The number 9 becomes the next digit in our result. 
Result so far: 136620.745709
If we take 5769 away from 6300, we end up with 531.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5310, and continue the process.

On to step 15:
5310 divided by 641 is 8 with a remainder of 182.
Put 8 as the next digit of the answer. 
Result so far: 136620.7457098
If we subtract 5128 from 5310, we get 182.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1820, and continue the process.

Moving on to step 16:
The number 641 fits into 1820 2 times, leaving a remainder of 538.
The number 2 becomes the next digit in our result. 
Result so far: 136620.74570982
Deduct 1282 from 1820 and we're left with 538.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5380, and continue the process.

Our division results in 136620.74570982 with a remaining 5.38e-07.