We're dividing 87958950 by 561 
Our goal is to divide 87958950 by 561.

Let's proceed to step 1:
When dividing 8 by 561, we get 0 with a remainder of 8.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 8 to get 8.
Append the next digit (7) from the dividend to 8 and continue with: 87 / 561

Let's proceed to step 2:
87 divided by 561 is 0 with a remainder of 87.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
If we take 0 away from 87, we end up with 87.
Fetch the next digit (9) from the dividend, attach it to 87 and continue: 879 / 561

Advancing to step 3:
561 goes into 879 1 times with a remainder of 318.
Record the quotient 1 as the next digit in the result. 
Result so far: 1.0
Subtracting 561 from 879 leaves us with 318.
Bring next digit (5) of the dividend behind the 318 and repeat the process: 3185 / 561

Advancing to step 4:
561 goes into 3185 5 times with a remainder of 380.
The number 5 becomes the next digit in our result. 
Result so far: 15.0
The remainder is 380 after subtracting 2805 from 3185.
Bring next digit (8) of the dividend behind the 380 and repeat the process: 3808 / 561

Step 5:
3808 divided by 561 is 6 with a remainder of 442.
The number 6 becomes the next digit in our result. 
Result so far: 156.0
Deduct 3366 from 3808 and we're left with 442.
Bring next digit (9) of the dividend behind the 442 and repeat the process: 4429 / 561

Going ahead to step 6:
561 goes into 4429 7 times with a remainder of 502.
Write down 7 as next digit of the result. 
Result so far: 1567.0
If we take 3927 away from 4429, we end up with 502.
Include the next digit (5) from the dividend after 502, then repeat: 5025 / 561

On to step 7:
561 goes into 5025 8 times with a remainder of 537.
Use 8 as the next digit of our solution. 
Result so far: 15678.0
The remainder is 537 after subtracting 4488 from 5025.
Take the next digit (0) from the dividend and append it to 537, then repeat: 5370 / 561

Going ahead to step 8:
561 can be fit into 5370 9 times, resulting in a remainder of 321.
Put 9 as the next digit of the answer. 
Result so far: 156789.0
Subtracting 5049 from 5370 leaves us with 321.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3210, and continue the process.

Moving on to step 9:
3210 divided by 561 is 5 with a remainder of 405.
The number 5 becomes the next digit in our result. 
Result so far: 156789.5
If we take 2805 away from 3210, we end up with 405.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4050, and continue the process.

Advancing to step 10:
The number 561 fits into 4050 7 times, leaving a remainder of 123.
The number 7 becomes the next digit in our result. 
Result so far: 156789.57
Deduct 3927 from 4050 and we're left with 123.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1230, and continue the process.

Going ahead to step 11:
When dividing 1230 by 561, we get 2 with a remainder of 108.
Use 2 as the next digit of our solution. 
Result so far: 156789.572
Deduct 1122 from 1230 and we're left with 108.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1080, and continue the process.

Moving on to step 12:
1080 divided by 561 is 1 with a remainder of 519.
The number 1 becomes the next digit in our result. 
Result so far: 156789.5721
Subtracting 561 from 1080 leaves us with 519.
Since there are no more digits in the dividend, we add a zero to the remainder making it 5190, and continue the process.

Step 13:
561 goes into 5190 9 times with a remainder of 141.
The number 9 becomes the next digit in our result. 
Result so far: 156789.57219
The remainder is 141 after subtracting 5049 from 5190.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1410, and continue the process.

Let's proceed to step 14:
If we divide 1410 by 561, we get 2 and a remainder of 288.
The next digit of our result is 2. 
Result so far: 156789.572192
Deduct 1122 from 1410 and we're left with 288.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2880, and continue the process.

Let's proceed to step 15:
561 goes into 2880 5 times with a remainder of 75.
The number 5 becomes the next digit in our result. 
Result so far: 156789.5721925
Subtract 2805 from 2880 to get 75.
Since there are no more digits in the dividend, we add a zero to the remainder making it 750, and continue the process.

On to step 16:
The number 561 fits into 750 1 times, leaving a remainder of 189.
Put 1 as the next digit of the answer. 
Result so far: 156789.57219251
The remainder is 189 after subtracting 561 from 750.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1890, and continue the process.

The final outcome is 156789.57219251, with a leftover of 1.89e-07.