15988981 divided by 70 
We're looking to find how many times 70 goes into 15988981.

Advancing to step 1:
70 goes into 1 0 times with a remainder of 1.
Use 0 as the next digit of our solution. 
Result so far: 0.0
If we take 0 away from 1, we end up with 1.
Append the next digit (5) from the dividend to 1 and continue with: 15 / 70

Going ahead to step 2:
70 can be fit into 15 0 times, resulting in a remainder of 15.
The next digit of our result is 0. 
Result so far: 0.0
If we take 0 away from 15, we end up with 15.
Take the next digit (9) from the dividend and append it to 15, then repeat: 159 / 70

Moving on to step 3:
If we divide 159 by 70, we get 2 and a remainder of 19.
The number 2 becomes the next digit in our result. 
Result so far: 2.0
If we take 140 away from 159, we end up with 19.
Grab the next digit (8) from the dividend, add it to 19, then carry on: 198 / 70

Moving on to step 4:
When dividing 198 by 70, we get 2 with a remainder of 58.
Use 2 as the next digit of our solution. 
Result so far: 22.0
If we subtract 140 from 198, we get 58.
Grab the next digit (8) from the dividend, add it to 58, then carry on: 588 / 70

Moving on to step 5:
70 can be fit into 588 8 times, resulting in a remainder of 28.
Write down 8 as next digit of the result. 
Result so far: 228.0
Subtract 560 from 588 to get 28.
Grab the next digit (9) from the dividend, add it to 28, then carry on: 289 / 70

Advancing to step 6:
When dividing 289 by 70, we get 4 with a remainder of 9.
Put 4 as the next digit of the answer. 
Result so far: 2284.0
If we subtract 280 from 289, we get 9.
Append the next digit (8) from the dividend to 9 and continue with: 98 / 70

Step 7:
70 goes into 98 1 times with a remainder of 28.
The number 1 becomes the next digit in our result. 
Result so far: 22841.0
If we take 70 away from 98, we end up with 28.
Append the next digit (1) from the dividend to 28 and continue with: 281 / 70

Step 8:
70 goes into 281 4 times with a remainder of 1.
The number 4 becomes the next digit in our result. 
Result so far: 228414.0
Subtract 280 from 281 to get 1.
Since there are no more digits in the dividend, we add a zero to the remainder making it 10, and continue the process.

Moving on to step 9:
10 divided by 70 is 0 with a remainder of 10.
Put 0 as the next digit of the answer. 
Result so far: 228414.0
If we subtract 0 from 10, we get 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Step 10:
100 divided by 70 is 1 with a remainder of 30.
The next digit of our result is 1. 
Result so far: 228414.01
Deduct 70 from 100 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Moving on to step 11:
The number 70 fits into 300 4 times, leaving a remainder of 20.
Write down 4 as next digit of the result. 
Result so far: 228414.014
If we take 280 away from 300, we end up with 20.
Since there are no more digits in the dividend, we add a zero to the remainder making it 200, and continue the process.

On to step 12:
70 can be fit into 200 2 times, resulting in a remainder of 60.
Put 2 as the next digit of the answer. 
Result so far: 228414.0142
Deduct 140 from 200 and we're left with 60.
Since there are no more digits in the dividend, we add a zero to the remainder making it 600, and continue the process.

Let's proceed to step 13:
The number 70 fits into 600 8 times, leaving a remainder of 40.
Write down 8 as next digit of the result. 
Result so far: 228414.01428
Deduct 560 from 600 and we're left with 40.
Since there are no more digits in the dividend, we add a zero to the remainder making it 400, and continue the process.

Going ahead to step 14:
70 can be fit into 400 5 times, resulting in a remainder of 50.
The next digit of our result is 5. 
Result so far: 228414.014285
If we take 350 away from 400, we end up with 50.
Since there are no more digits in the dividend, we add a zero to the remainder making it 500, and continue the process.

Step 15:
The number 70 fits into 500 7 times, leaving a remainder of 10.
Put 7 as the next digit of the answer. 
Result so far: 228414.0142857
If we take 490 away from 500, we end up with 10.
Since there are no more digits in the dividend, we add a zero to the remainder making it 100, and continue the process.

Advancing to step 16:
100 divided by 70 is 1 with a remainder of 30.
Record the quotient 1 as the next digit in the result. 
Result so far: 228414.01428571
Deduct 70 from 100 and we're left with 30.
Since there are no more digits in the dividend, we add a zero to the remainder making it 300, and continue the process.

Our division results in 228414.01428571 with a remaining 3e-08.