We divide 15861801 by 987
We want to divide 15861801 by 987.

Moving on to step 1:
1 divided by 987 is 0 with a remainder of 1.
The number 0 becomes the next digit in our result. 
Result so far: 0.0
If we subtract 0 from 1, we get 1.
Fetch the next digit (5) from the dividend, attach it to 1 and continue: 15 / 987

Moving on to step 2:
987 can be fit into 15 0 times, resulting in a remainder of 15.
Put 0 as the next digit of the answer. 
Result so far: 0.0
The remainder is 15 after subtracting 0 from 15.
Fetch the next digit (8) from the dividend, attach it to 15 and continue: 158 / 987

Moving on to step 3:
987 goes into 158 0 times with a remainder of 158.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 158 to get 158.
Grab the next digit (6) from the dividend, add it to 158, then carry on: 1586 / 987

Step 4:
The number 987 fits into 1586 1 times, leaving a remainder of 599.
Put 1 as the next digit of the answer. 
Result so far: 1.0
Subtracting 987 from 1586 leaves us with 599.
Fetch the next digit (1) from the dividend, attach it to 599 and continue: 5991 / 987

Let's proceed to step 5:
If we divide 5991 by 987, we get 6 and a remainder of 69.
Put 6 as the next digit of the answer. 
Result so far: 16.0
If we take 5922 away from 5991, we end up with 69.
Include the next digit (8) from the dividend after 69, then repeat: 698 / 987

Let's proceed to step 6:
The number 987 fits into 698 0 times, leaving a remainder of 698.
The number 0 becomes the next digit in our result. 
Result so far: 160.0
If we subtract 0 from 698, we get 698.
Fetch the next digit (0) from the dividend, attach it to 698 and continue: 6980 / 987

On to step 7:
When dividing 6980 by 987, we get 7 with a remainder of 71.
Record the quotient 7 as the next digit in the result. 
Result so far: 1607.0
The remainder is 71 after subtracting 6909 from 6980.
Fetch the next digit (1) from the dividend, attach it to 71 and continue: 711 / 987

On to step 8:
The number 987 fits into 711 0 times, leaving a remainder of 711.
The next digit of our result is 0. 
Result so far: 16070.0
The remainder is 711 after subtracting 0 from 711.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7110, and continue the process.

Going ahead to step 9:
987 can be fit into 7110 7 times, resulting in a remainder of 201.
Record the quotient 7 as the next digit in the result. 
Result so far: 16070.7
Subtracting 6909 from 7110 leaves us with 201.
Since there are no more digits in the dividend, we add a zero to the remainder making it 2010, and continue the process.

Going ahead to step 10:
987 can be fit into 2010 2 times, resulting in a remainder of 36.
The next digit of our result is 2. 
Result so far: 16070.72
Subtract 1974 from 2010 to get 36.
Since there are no more digits in the dividend, we add a zero to the remainder making it 360, and continue the process.

Let's proceed to step 11:
360 divided by 987 is 0 with a remainder of 360.
Put 0 as the next digit of the answer. 
Result so far: 16070.72
The remainder is 360 after subtracting 0 from 360.
Since there are no more digits in the dividend, we add a zero to the remainder making it 3600, and continue the process.

Moving on to step 12:
987 goes into 3600 3 times with a remainder of 639.
The number 3 becomes the next digit in our result. 
Result so far: 16070.7203
Deduct 2961 from 3600 and we're left with 639.
Since there are no more digits in the dividend, we add a zero to the remainder making it 6390, and continue the process.

Going ahead to step 13:
When dividing 6390 by 987, we get 6 with a remainder of 468.
Use 6 as the next digit of our solution. 
Result so far: 16070.72036
Subtract 5922 from 6390 to get 468.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4680, and continue the process.

Let's proceed to step 14:
The number 987 fits into 4680 4 times, leaving a remainder of 732.
Put 4 as the next digit of the answer. 
Result so far: 16070.720364
Deduct 3948 from 4680 and we're left with 732.
Since there are no more digits in the dividend, we add a zero to the remainder making it 7320, and continue the process.

Step 15:
If we divide 7320 by 987, we get 7 and a remainder of 411.
Put 7 as the next digit of the answer. 
Result so far: 16070.7203647
The remainder is 411 after subtracting 6909 from 7320.
Since there are no more digits in the dividend, we add a zero to the remainder making it 4110, and continue the process.

Advancing to step 16:
987 goes into 4110 4 times with a remainder of 162.
Put 4 as the next digit of the answer. 
Result so far: 16070.72036474
Deduct 3948 from 4110 and we're left with 162.
Since there are no more digits in the dividend, we add a zero to the remainder making it 1620, and continue the process.

The quotient of the division is 16070.72036474, and the remainder is 1.62e-07.